Operation: Mechagon Megadungeon Ability and Strategy Guide

By Squishei Updated: 2025/02/07

Operation: MechagonMechagonOperation: MechagonHeroicMythic+

Operation: Mechagon - Junkyard - Gunker, Trixie & Naeno, King Gobbamak, HK-8

Operation: Mechagon - Workshop - Tussle Tonks, K.U.J.O., Head Machinist Sparkflame, King Mechagon

Loot and Rewards

415 item level armor, weapons and trinkets.

415 item level conditional rings, that when fused together, have interesting bonuses.

415 item level shoulder and chest Azerite Armor.

Yellow, Red, and Blue Punchcards

Vision of Perfection Azerite Essence and Upgrades

Mechagon Peacekeeper is a rare drop from HK-8 Aerial Oppression Unit, the 4th boss of the dungeon.

Aerial Unit R-21/X is a rare drop from King Mechagon, the last boss of the dungeon. This is a flying mount.

Microbot 8D is a rare drop from HK-8 Aerial Oppression Unit, the 4th boss of the dungeon.

Golden Snorf is a rare drop from King Mechagon, the last boss of the dungeon.

Engineering

Schematic: Super-Charged Engine - K.U.-J.0. - Teaches how to craft the Super-Charged Engine, which is 1 of the 2 items needed for the Xiwyllag ATV mount.

Blacksmithing

Plans: Monelite Reinforced Chassis - K.U.-J.0. - Teaches how to craft the Monelite Reinforced Chassis, which is 1 of the 2 items needed for the Xiwyllag ATV mount.

Alchemy

Recipe: Abyssal Healing Potion - Any Boss - Teaches the Rank 3 craft for Abyssal Healing Potion.

Recipe: Potion of Unbridled Fury - Any Boss - Teaches the Rank 3 craft for Potion of Unbridled Fury.

Recipe: Potion of Wild Mending - Any Boss - Teaches the Rank 3 craft for Potion of Wild Mending.

Operation: Mechagon's Hard Mode Rewards

You will earn the Keep DPS-ing and Nobody Explodes achievement for completing Hard Mode.
If you complete the entire run deathless, you'll get Hertz Locker and Rank 4 Vision of Perfection

Aerial Unit R-21/XOutside Mechagon City

Gunker - The Outflow

Trixie Tazer & Naeno Megacrash - Bondo's Yard

King Gobbamak - Scrapbone Den

HK-8 Aerial Oppression Unit - Junkwatt Depot

HK-8 Aerial Oppression Unit

The HK-8 Aerial Oppression Unit will be flying over one of the bosses and locations listed above.

You'll want to defeat any boss that does not have the HK-8 Aerial Oppression Unit flying over it, as it will make the fight harder.
Defeating all the bosses with the HK-8 Aerial Oppression Unit above it is one of the conditions to activate Hard Mode, which is covered at the very bottom of the guide.

HK-8 Aerial Oppression Unit

Choose a boss that does not have the HK-8 Aerial Oppression Unit over it.

Gunker Notable Trash MobsToxic MonstrosityToxic TendrilsConsume

Toxic Tendrils is cast about every 20 seconds, and will pull all players to the center of the Toxic Monstrosity.

It will then immediately cast Consume
This creates a zone of Consuming Slime under itself that slowly expands, dealing damage and applying a healing reduction to any player hit. This can be removed using a Disease Dispel.

While Consume is being channeled, players will be pulled towards the Toxic Monstrosity and towards the Consuming Slime.

Toxic TendrilsToxic MonstrosityToxic TendrilsConsuming SlimeDisengageWild Charge

Run out of the expanding Consuming Slime after you get pulled in!

Slime ElementalSlimebolt

Players should aim to interrupt Slimebolt when pulled with a Toxic Monstrosity as the slow will make running out of the Consuming Slime much more difficult. The debuff can also be removed with a Poison debuff

Slime Elementals will face a direction and cast Slimewave, causing them to charge in that direction dealing high damage to anyone hit and knocking them back.

Make sure to dodge out of the way when Slime Elemental casts this ability.

Gnome-Eating SlimeGnome-Eating Droplet

Both of these mobs will cast Acid Splash, an uninterruptable spell that does minor damage to all players.

The Gnome-Eating Droplets have little health and should be cleaved down, as otherwise there will be many casts of Acid Splash dealing very high damage to players.

Toxic LurkerSuffocating Smog

One player should be assigned to interrupt the Toxic Lurker's Suffocating Smog as having a player stunned for 10 seconds is not ideal.

If no interrupt is available, you can use a Crowd Control or Displacement ability to interrupt the channel.

Gunker Boss Abilities and StrategyGunkerToxic MonstrositySquirt BotSquirt BotGunkerToxic GoopToxic GoopGooped

There is a permanent pool of Toxic Goop under Gunker so melee should make sure that they don't enter his hitbox.

While Gooped, players are incapacitated, preventing them from using other actions.

When a player is Gooped, other players should defeat the Goop encasing them.

A player with a Disease dispel can instantly remove Gooped from a player or Squirt Bot.

Squirt BotSquirt BotGooped

When the encounter starts, the Squirt Bots will activate Sanitizing Spray and slowly walk around Gunker.

Players who stand in the Sanitizing Spray will be immune to the effects of Toxic Goop

When a Squirt Bot walks over a pile of Toxic Goop, the pool of Toxic Goop will be removed.

There is one Squirt Bot that walks in melee range of the boss and melee can almost permanently follow that Squirt Bot for the entire fight.

GunkerSplatterGoopedSquirt Bot

Players should safely defeat the Goop that encases the Squirt Bot.

Be careful when defeating the Goop, as while the Squirt Bot is Gooped it does not have the Sanitizing Spray aura.

GunkerToxic Fumes

He will periodically rain pools of Toxic Goop into the arena, indicated by green swirlies.

About 10 seconds later, he will cast Coalesce, drawing all pools of Toxic Goop directly to him.

Players should make sure that there is no Toxic Goop pool directly behind them.
Alternatively, they should stand in a Squirt Bot or stand in between a Squirt Bot and the boss.
He will then once again drop more pools of Toxic Goop into the arena.
10 seconds later, he'll cast Toxic Wave, sending out a wave of Toxic Goop in all directions.
There are no gaps in this ability, so players must be standing in a Squirt Bot or directly behind one.
You can outrange Toxic Wave but it requires players to be very far out of range.

Dodge Toxic Wave by standing in a Squirt Bot.

Trixie Tazer & Naeno Megacrash Notable Trash MobsSmoke CloudHeavy ScrapbotHeavy ScrapbotDisassembling ProtocolThey will also cast Gyro-Scrap. After an initial cast, they will activate a Whirlwind effect dealing high damage to all nearby players. Players should make sure to not be in melee range during this time.Heavy Scrapbots will release some Exhaust, creating a Smoke Cloud in the area. As it interferes with targeting, tanks should drag the mobs out of the Smoke Cloud.Lastly, Repair Protocol will be when the Heavy Scrapbot reaches low health. This should be interrupted. Pistonhead ScrapperSledgehammer

This is a massive armor reduction to your Tank and Tanks should be careful about pulling extra mobs with these.

Pistonhead BlasterShoot

These mobs will frequently reposition using Run 'n' Gun and there's nothing you can do about it.

They will also toss Scrap Grenade at the location of players.

Shock CoilPistonhead Mechanic

They will frequently Shield Bash your tank dealing high physical damage.

Make sure to interrupt Overclock, a 3 second interruptable cast. If this goes off, all nearby robots will gain 100% haste.

Assign another interrupt for Repair, a targeted heal that heals for 50% maximum health.

Weaponized CrawlerScrap Cannon

The Weaponized Crawler will face towards a random player and after a short cast, will fire a burst of damage in a small cone.

The other ability that it will use is Shock Coil. This causes the Weaponized Crawler to deal high AoE damage to the party and the healer may need to use cooldowns to survive.

ScraphoundMetallic Jaws

They will also face towards a player and cast B.O.R.K. Any player that is hit takes damage and has their Haste and movement speed reduced by 50%.

Trixie Tazer & Naeno Megacrash Boss Abilities and StrategyTrixie TazerNaeno Megacrash

When Naeno Megacrash is defeated first, Trixie Tazer gains Super Boost. This increases her Haste by 100%.

When Trixie Tazer is defeated first, Naeno Megacrash gains Turbo Boost. This makes his melee attacks deal high raid damage to all players.

Trixie TazerNaeno MegacrashJump Start

When Naeno Megacrash is in the Mechacycle, he will aim in a direction and after 4 seconds, Naeno Megacrash will cast Pedal to the Metal launching the Mechacycle across the field in a straight line.

This deals near lethal damage to those hit and knocks them back, so it's important to look at the Mechacycle and move out of the way.

Naeno Megacrash will then cast Burnout creating a Smoke Cloud and casting Pedal to the Metal again.

After the second Pedal to the Metal, Naeno Megacrash will exit the Mechacycle and engage in melee combat.

Naeno Megacrash

He will cast Roadkill charging to an area dealing high damage to those in the area.

Tanks will have to watch out for Bolt Buster. This is a frontal cleave that is cast towards the Tank and will likely kill any non-tank.

Smoke CloudMega TazeTrixie Tazer

Instead, she spam casts Taze, a 2.5 second long cast that will deal a small amount of up front damage, but applies a hard hitting DoT that lasts for 20 seconds.

Players should coordinate interrupts whenever possible, but it's inevitable that some of these casts will go through.

Trixie Tazer will also periodically reposition using Electric Slide.

Trixie TazerMega Taze

This is an 8 second long uninterruptable cast that marks a player.

At the end of the cast, the player will be stunned for 8 seconds and take a very high amount of damage.

To counter this, the marked player should enter the Smoke Cloud, left behind by Naeno Megacrash, at the last second. This prevents the player from getting Mega Tazed.

King Gobbamak Notable Trash MobsSaurolisk BonenipperRipping SlashScrapbone GrinderSkullcracker

These Troggs will try to Enrage increasing damage done by 100%. Try to interrupt this whenever possible.

You can also remove this buff with a Soothe effect.

Scrapbone Shaman

Shamans will try to cast Stoneskin on a nearby target. This reduces their damage taken by 75% and grants immunity to Crowd Control effects.

In addition, they will also try to cast Grasping Hex. If successful, this roots all players for 8 seconds, making it very difficult to dodge other abilities.

Both these abilities should have a kick assigned to them.

Scrapbone TrashtosserThrow Trash

Occasionally, one of the casts will be Throw Trash which is targeted on the floor as a red swirl.

Scrapbone BullyHeadbutt

The most important ability that it casts is Shockwave.
The Scrapbone Bully will face a random direction and cast Shockwave dealing very high damage to anyone hit.

It's important to kick any Scrapbone Shamans if you pull a Bully, as you need to be able to dodge the Shockwave

EnrageScrapbone GrunterRampaging

They do nothing special but melee hit but will fixate random targets.

King Gobbamak Boss Abilities and StrategyCharged SmashKing Gobbamak

King Gobbamak will constantly summon Scrapbone Grunters throughout the entire fight

These troggs deal minor damage but will quickly become overwhelming.

You'll want to use the Stolen Tech in the area to help keep the number of Scrapbone Grunters low.

King GobbamakCharged Smash

This deals very high damage that is split among all players near the Tank.

The party should group up during this cast to help the Tank survive.

Every player that is hit by Charged Smash will become Electrical Charged dealing a small amount of damage over time.

Players can remove the Electrical Charge early by standing next to either the Stolen Scrapbot or a Stolen Shock Coil.

This also activates the Stolen Tech for 20 seconds, which will instantly kill any Scrapbone Grunters that come near it.

Bring your Electrical Charge to activate a piece of Stolen Tech marked above.

King GobbamakRumble

This deals high damage to all players over 5 seconds and causing many Cave-Ins to occur.

Players should use defensives and dodge the falling rocks.

HK-8 Aerial Oppression Unit Notable Trash MobsMechagon Prowler

These deal high physical damage to any non-tank.

They also Pounce on targets and applying a bleed.

Rapid FireMechagon Cavalry

They will Charge to a target and then start casting Rapid Fire.

The Cavalry will quickly kill any player that remains in front of it while slowly rotating in a random direction.

Ranged players can outrange the Rapid Fire, but this may cause the Cavalry to charge very far away from the melee.

Mechagon TrooperNanoslicerMechagon Renormalizer

They will alternate between casting Enlarge and Shrink.

If Enlarge is successfully cast, it increases the health and damage of the target by 100%. It can be removed by a Magic Purge.

If Shrink is successfully cast, that player will deal 99% less damage and healing. Shrink can be removed by a Magic Dispel.
Shrunk players can be stepped on by other players, causing them to take near-fatal damage.

Anodized Coilbearer

Charged Coil is a 6 second long channel that deals damage every 1.5 seconds for 6 seconds. It can be interrupted.

At low health, the Coilbearer will activate Defensive Countermeasure putting up a shield and absorbing some damage.

HK-8 Aerial Oppression Unit Boss Abilities and StrategyHK-8 Aerial Oppression Unit

In Phase 1, you'll fight a Tank Buster MK1

In Phase 2 you'll have to go hack an Overcharge Station which causes the HK-8 Aerial Oppression Unit to got Haywire and take triple damage for 30 seconds!

Tank Buster MK1HK-8 Aerial Oppression Unit

The Tank Buster will cast... a Tank Buster called Wreck.

This deals a large amount of Physical damage every second for 3 seconds to the Tank.

Every hit also stacks the debuff Wreck which makes every hit harder than the last.

Tanks should make sure they have cooldowns active for this ability.

Self-DestructReinforcement Relay

This will summon some Walkie Shockie X1s into the arena.

The Walkie Shockies are completely immune to damage but can be Crowd Controlled.

These robots will focus random targets, slowly walking towards them and leaving Static Discharge in their wake.

Their energy depletes over time and upon hitting 0 energy, they will Self-Destruct.

Druid's Mass Entanglement are particularly good at dealing with the Walkie Shockies.

When you engage the Tank Buster, a Blue Ring will lock players into the Arena and teleport players back inside if they try to leave.

The healer will have to deal with the Tank Buster MK1 casting Fulminating Zap on random targets.

The HK-8 will move around the outskirts of the arena and periodically cast Cannon Blast towards the center of the arena.
This creates a line of cannon blasts that will nearly one-shot any players hit.

You can have someone follow the movements of the HK-8 to know where the cannon blasts will be showing up.

Dodge the line of Cannon Blasts.

Start positioning to the side of the Arena and after a few seconds, the ring around the edge of the arena will disappear.

The HK-8 Aerial Oppression Unit will fly to the center of the arena and start casting Annihilation Ray dealing light ticking damage to the party.

This will also start a slowly expanding zone, dealing very high damage to anyone who is caught in it.

This forces players towards the Overcharge Station

The first trap that players will encounter is Vent Blast.
This trap is located underneath the grated floors and will periodically light up and activate.

Standing on the grates when they activate will cause you to take a high amount of damage and stun you for 2 seconds which may cause you to get by another trap.

Sentry Array

This trap is a rotating set of beams that will teleport you back to the start if you're hit by them.

Classes with Leaps and Jumps will be able to traverse over the Sentry Array.

Sentry Bots

Getting hit by a bot will teleport you back to the start.

The first set of bots will alternate traversing down the left and right side of the platforms.

The second set of bots will rotate around the Overcharge Station.

Dodge the rotating Sentry Array and Vent Blasts.

The Overcharge Station starts with 100 energy.

Every second that anyone spends hacking will remove 2 energy from the Overcharge Station.

When the Overcharge Station hits 0 energy, the HK-8 Aerial Oppression Unit will go Haywire making it fall to the ground and taking triple damage for 30 seconds.

During this time, Malfunction Sparks will fly out of the boss and you should dodge the area of impact.

If the boss is not dead at the end of the 30 second channel, it will fly back up into the air and you'll start at Phase 1 again.

Click on the Overcharge Station to hack it. Make sure to dodge the Sentry Bots!

HK-8 Aerial Oppression UnitHaywireAnnihilation RayInside Mechagon CityHK-8 Aerial Oppression UnitTussle Tonks Notable Trash Mobs

Around the edges of the room are many saw blades and coming into contact with them will cause you to take damage.

Periodically, Buzz Saws will activate and roll around the arena in a certain pattern. Dodge these whenever possible!

Bomb TonkDetonate

This should be interrupted to reduce damage.

Strider TonkFlying Peck

After the cast finishes, the Strider Tonk will fly to that location dealing damage to anyone remaining in the area.

Simply move out of the zone!

Rocket TonkRocket Barrage

Getting hit by one does moderate damage.

You can use a stun to stop the channel and the Rocket Barrage cast.

Tussle Tonks Boss Abilities and StrategyThe Platinum PummelerGnomercy 4.U.

These bosses do not share a health pool and do not need to die at the same time.

We recommend killing Gnomercy 4.U. as soon as possible.

Buzz Saw

There are 4 Piston Smashers located around the room.

Piston Smashers look like giant hammers and will activate when something moves under it.

After being activated, it will smash into the ground after a couple seconds and the PIston Smasher will become permanently deactivated when it hits the The Platinum Pummeler.

The Platinum PummelerPlatinum Plating

Each time the The Platinum Pummeler is struck by a Piston Smasher it will remove one stack.

At the start of the fight, the Tank should use their Taunt and bring The Platinum Pummeler underneath 3 total Piston Smashers.

The healer will likely gain healer aggro until the first stack is removed so make sure that the Tank constantly taunts it in the right direction.

Bring the The Platinum Pummeler underneath a Piston Smasher.

The Platinum PummelerWhirling Edge

Players should back away for the short time this ability takes.

The The Platinum Pummeler will also Lay Mines on the ground that you should dodge.

Vent JetsGnomercy 4.U.

When Gnomercy 4.U. casts Maximum Thrust, look in the direction that its facing and dodge the upcoming charge.

After it impacts the wall, it will be stunned for 10 seconds.

Gnomercy 4.U.Vent Jets

This cast slows itself by 60% and the fixated player should run away!

The party will take very high fire damage every second for 10 seconds and the healer should use cooldowns during this time.

If you're directly in front of Gnomercy 4.U. during Vent Jets, you'll take additional damage.

K.U.-J.0. Notable Trash MobsK.U.-J.0.Waste Processing UnitProcess Waste

This deals damage in a frontal cone and only the Tank should get hit by this.

Waste Processing Units also have the ability to cast Mega Drill.

When the cast finishes, all players remaining in the circle will take a large burst of damage.

Junkyard D.0.G.

They will cast Flaming Refuse on random target dealing a very light amount of ticking damage.

D.0.G.s will also cast Metallic Jaws on your tank.

Living Waste

They do nothing special until they reach 1 HP at which point they cast Volatile Waste.

This deals a large amount of damage to all players and if too many Living Wastes die at the same time, it will likely wipe your party.

You should aim to stagger the Living Waste deaths, or Line of Sight the cast.

K.U.-J.0. Boss Abilities and StrategyK.U.-J.0.Explosive Leap

Getting hit by an Air Drop will deal minor damage to anyone in the area and knock them back.

Junk Cubes will become "Heated" when they are hit by some of K.U-J.O.'s abilities.

When a "Heated" Junk Cube tries to become "Heated" for the second time, it will instead become a Junk Bomb.

This instantly deals damage to anyone nearby and knocks them back.

K.U.-J.0.Explosive Leap

He will mark random players and jump to them a couple seconds later.

These players should spread out and more away from Junk Cubes.

Any Junk Cubes hit will become "Heated"

Venting Flames

After a long cast time, K.U.-J.0. will deal very high fire damage to anyone within Line of Sight.

Players can use Junk Cubes or any corner of the Arena to hide from this ability.

This ability will heat all normal Junk Cubes and detonate all Junk Cubes that are already "Heated"

Because of this, it's important to not hide behind Junk Cubes that are "Heated" at the start of the cast.

Hide out of line of sight during Venting Flames

K.U.-J.0.Blazing Chomp

This deals very high Magic damage every second and must be dispelled.

When dispelled it deals minor damage to the rest of the party.

There is a short grace window until the first tick of the debuff to allow the healer an easier time dispelling.

Machinist's Garden Notable Trash Mobs

The Conveyor Belt will be pushing against you and you'll have to dodge jets of flame.

The first player to make it to the end of the Gauntlet can push a button to disable the flame jets.

It's faster to walk on the edges of the Conveyor Belts as those don't push you in any direction.

Walk against the Conveyor Belts and dodge the fire!

Wave 1 contains 2 Mechagon Tinkerers and 2 G.U.A.R.D.s

Wave 2 contains 2 Defense Bot Mk Is and 1 Defense Bot Mk III.

Wave 3 contains a Blastatron X-80

Mechagon TinkererGiga-Wallop

The more deadly ability is Activate Anti-Personnel Squirrel.

This squirrel will activate, heading to an area and casting Anti-Personnel Squirrel in that area.

Players who stand in the area will take massive damage but the cast can be stopped with a stun, making the Squirrel despawn harmlessly.

G.U.A.R.D.Metallic JawsDefense Bot Mk IArcing Zap

This can be Magic Dispelled by a healer.

Defense Bot Mk IIIArcing Zap

Short Out will deal damage to all players every 0.5s for 3 seconds.

At low health, the Defense Bot Mk III will cast Defensive Countermeasure putting a shield on itself that can be removed using a Magic Purge.

Blastatron X-80

Everyone should stay away from its front when it casts Sonic Pulse as it silences anyone hit for 8 seconds.

It will also cast Launch High-Explosive Rockets dealing high damage to anyone hit by the rockets.

Lastly it will cast Capacitor Discharge
This long channel will periodically deal damage to three-quarters of the area.

The area that is safe will be telegraphed beforehand and players should move to that area.

Look for the faint blue outline for where the Capacitor Discharge will fire.

There will be an alleyway full of Detect-o-Bots that you have to make your way through.

Entering the circle of an Detect-o-Bot will get you teleported back to the start.

However, entering a Stealthy Steam Vent will prevent a Detect-o-Bot from detecting you while in its circle.

Dodge the Detect-o-Bots and use the Stealthy Steam Vents to hide!

Workshop DefenderMechagon MechanicWorkshop DefenderChainbladeMechagon Mechanic

Overclock should be prioritized as it increases the haste of all robots by 100%.

Tune Up should also be kicked as it heals 10% health every 2 seconds.

Machinist's Garden Boss Abilities and StrategyHead Machinist Sparkflux"Hidden" Flame Cannon

If you look at the center statue, you'll see little spouts that pertude after the cast.

These spouts tell you where the Flame Cannons are going to begin.

A few seconds later, the Flame Cannons will fire, locking players in the section of the room that they're currently in.

Getting hit by the Flame Cannon leaves a very high ticking DoT and stacks if you cross multiple lines.

Stay between the "Hidden" Flame Cannon lines!

"Hidden" Flame CannonInconspicuous Plant

These will focus a random player and channel Blossom Blast.

This deals single target damage until the Inconspicuous Plant is dead.

Once it dies, it becomes an Oil Fountain and will transform when hit by the next "Hidden" Flame Cannon.

This transforms it into a Roaring Flame causing many fire patches to dodge near it's corpse.

Roaring Flames will never despawn and you'll have more and more fire patches to dodge as the fight goes on.

Discom-BOMB-ulator

This will be cast on the location on a random player.

Getting hit will disorient the player for 9 seconds, but it can be magic dispelled.

If this hits your tank, Sparkflux will start to melee hit another target.

Self-Trimming Hedge

This is a bouncing sawblade that will never despawn.

Getting hit will deal a large amount of damage.

King Mechagon Notable Trash MobsSpider Tank

These mobs have a frontal cone Sonic Pulse that silences anyone hit for 8 seconds.

They will also Launch High-Explosive Rockets.

King Mechagon Boss Abilities and StrategyAerial Unit R-21/X

While in this mode, he does not melee hit the tank but instead spam casts Pulse Blast

This does pure magic damage so physical damage mitigation will not work on this portion of the encounter.

Plasma Orb

Players who get too close will take damage and be knocked back.

However, King Mechagon will periodically move the Plasma Orbs using Recalibrate.

Recalibrated Plasma Orbs will deal massive damage in the areas marked, and a smaller amount of damage to players that they pass through.

You can see where each Orb is traveling to by the arrows next to each Orb.

Try to dodge as many as you can!

Dodge the Plasma Orbs during Recalibrate.

Cutting BeamMega-Zap

In Phase 1, this fires towards the target and pierces them, dealing a large amount of upfront damage and leaving a damage over time effect.

This debuff lasts 12 seconds and increases damage taken from Mega-Zap by 100%. This bonus effect is not important during Phase 1.

Cutting Beam

The Aerial Unit R-21/X will Take Off! and then channel Cutting Beam for 12 seconds.

This deals high damage to the entire party, but does massive damage to anyone directly under the Cutting Beam.

The Aerial Unit R-21/X will chase a random target during this time.

The Cutting Beam hitbox is very small and melee DPS can continue DPS'ing without taking the extra damage.

Aerial Unit R-21/XOmega Buster

The Plasma Orbs and Recalibrate will still be cast from Phase 1.

The Omega Buster is tanked like a regular mob.

Mega-Zap

In Phase 2, Mega-Zap is much wider and has a graphic showing exactly where's its firing.

It is also cast 3 times rapidly in succession, making the !00% bonus damage debuff important to manage during this phase.

Mega-Zap

We recommend that the targeted player do not move, letting everyone else move out of the effect.

It's important that if Mega-Zap is not targeted on you, you move out of the effect to not get the debuff.

If you're hit by a second Mega-Zap during the same set, the second cast will likely be lethal damage without a large damage reduction.

Stand still if targeted by Mega-Zap and let other players dodge!

Magneto-Arm

Players and Plasma Orbs will be drawn towards the Magneto-Arm for 9 seconds.

This also deals high ticking damage to the party that is reduced by increasing your distance from the Magneto-Arm.

Omega Buster

He has no special mechanics.

Operation: Mechagon Hard ModeStep 1: Hard Mode First 3 BossesHK-8 Aerial Oppression Unit

You do not need to defeat the Trash while the HK-8 Aerial Oppression Unit is above.

You can clear the Trash (or summon Gunker) before the HK-8 moves to make it a little easier.

HK-8 Aerial Oppression Unit

It periodically summons 3 Walkie Shockie X1 robots into each encounter that function the exact same as the ones from the HK-8 encounter.

You'll have to deal with the regular mechanics of the first three bosses, while having to deal with Walkie Shockie X1s.

We recommend using a Druid with Entangling Roots and Mass Entanglement.

Step 2: Hard Mode HK-8 Aerial Oppression UnitHK-8 Aerial Oppression UnitTank Buster MK2

This mob has similar mechanics to the MK1, but hits harder.

It also has replaced its Fulminating Zap with Fulminating Burst, a split damage mechanic that forces players to be stacked throughout this phase.

Help soak Fulminating Burst.

Walkie Shockie X1Walkie Shockie X2

Individually, these are the exact same, but now, all three Walkie Shockies are connected by a Shock Link.

This deals very high damage to any who remains in the Shock Link and it ticks every 0.3 seconds.

Players can quickly walk through the Shock Link to only take 1 tick of damage, but space is now even more limited.

Stay away from the Shock Links!

55 secondsHK-8 Aerial Oppression UnitHaywireAnnihilation Ray

This greatly reduces the amount of mistakes you can make heading to the Overcharge Station.

Step 3: Hard Mode K.U.-J.0.HK-8 Aerial Oppression UnitK.U.-J.0.HK-8 Aerial Oppression UnitRobo-Waste

This is located near where you walk in on the left side.

Click the Robo-Waste to send it flying into the fire and activate Hard Mode.

Click on the Robo-Waste to activate Hard Mode K.U.-J.0..

K.U.-J.0.

The debuff will slowly stack on the party, reducing movement speed by 5% per stack.

This will cap at 16 stacks, slowing players by about 80%.

You'll have to defeat K.U.-J.0. while under this slow, so much sure to head to the Junk Cubes early when he casts Venting Flames.

Hard Mode King Mechagon

Click the Red Button before the fight begins!

Annihilo-tron 5000

The Annihilo-tron 5000 has an energy bar that can be seen on the Boss Frames.

The Energy Bar drains at a rate of 20 energy every 9 seconds (2.22 energy per second).

When the Energy Bar hits 0 energy, the party will die after a few seconds.

Annihilo-tron 5000

Then, one at a time, each Input Panel will flash a colour and picture until each Input Panel has flashed once.

The colour and picture is not relevant and the only thing that your group will need to remember is the activation order of the Input Panels.

The Input Panels will all flash a Red Skull once again before all Input Panels will reactivate with colours. This starts the "Input Phase", allowing players to click on the Input Panels.

Players must then input the correct Termination Sequence, by clicking the Input Panel in the same order that you saw earlier.

Annihilo-tron 5000

Players will be able to click on the Input Panels starting at 11 Energy on the Annihilo-tron 5000.

This means that there's only 5 seconds to input the entire Termination Sequence.

This is not enough time for players to move between Input Panels, so you'll need one person stationed at each of the Input Panels.

Input Phase: When the Input Panels reactivate, each player should click on their Input Panel when its their turn!

every 45 seconds throughout the ENTIRE

Players should not stand near the Input Panels until the "Input Phase" as Recalibrate might place a Plasma Orb in the way or at a bad time.

Players should not kill the Aerial Unit R-21/X as the Termination Sequence is starting, as players may be stunned during the "Input Phase."

Mega-Zap, Magneto-Arm and Cutting Beam can line up with the Termination Sequence and you'll have to do your best to survive while paying attention to the combo.

Input Panel

Assign each player one Input Panel to pay attention to.
In Phase 1, we used 3 DPS and 1 Tank because the healer is very busy during this phase.

In Phase 2, we used 3 DPS and 1 Healer because the tank needs to stay in range of the boss.

Input PanelInput Panel

The player who is watching the first Input Panel to activate should call "1!"

The player who is watching the second Input Panel to activate should call "2!", after already having heard someone else call "1!"

e.g. If a player sees their Input Panel activate and has heard other players already called "1!", "2!" and "3!", they would know that their Input Panel is 4th and should call "4!".

Input Panel

Comments

Comment by jDHelga

I'm going to assume there's not really any Princess Huhuran in this dungeon, and you probably missed an integer in the id :) Looking forward to it though!

edit: After reading the whole thing, this could have really profited from someone proofreading. A lot of random words missing makes this very hard to read (especially noticeable later in the article).

Comment by RedWingToto

One thing I didn't see on here was an ability we found on K.U.J.O. A stacking debuff, noxious stench I think it is. To remove it, you need to pick up the dog's poop. So put one person in your group on pooper scooper duty.

Comment by SeyonMas

Why does the guide not mention the Welding Bots, Grease Bots, or Electro Bots that roam around and give very strong buffs?

Comment by Hykon

The guide doesn't cover the ability to remove the stacks during hard mode KUJO. If you click the poop on the floor that spawns during the fight, it does aoe dmg to the group but clears the slowing stacks.

Comment by Magnognomus

I healed SoO on normal / heroic (mythic today) and that was walk in the park compare to this. This is suck with capital C. Not fun at all.

Comment by Antalayah

"His deadly ability is Venting Flames.

After a long cast time, K.U.-J.0. will deal very high fire damage to anyone within Line of Sight.
Players can use Junk Cubes or any corner of the Arena to hide from this ability."

Not true, if you hide behind anything except the boxes, you will burn. Also, if the dog faces a corner of the box, pile up on top of each other exactly on the opposite corner.

Comment by VMersh

I have a question dont know if any of you experience this. Before the kujo fight got hotfixed and broken. I did a whole run with another group. And in the robo drome fight we did something... we dont really know what. But after the tank boss fell and while we were kiling the robot boss. An extra add jumped into de arena, de had some life, did some damage but most important would not shut up and kept on yelling. And we had to kill him, even after we had droped the tank boss and the robot boss.

When we did the fight again, the hotfix had already gone through, we did the fight again and the add didnt drop. And we got stucked in kujo since blizz broke the fight. We figured we activated hard mode or something. But reading this guide in detail i dont see any mention of this add, or even that the robo drome having a hard difficulty.

BTW the robo drome fight i mean the 5th fight.

So has any of you had this experience o know how to activate this add?

Edit - Just asked the tank since i was the healer, and he told me this add was a mecha-gnome.

Comment by zbtiqua

The Input timing for King Mechagon's Hardmode is not always the same. While he usually activates it at 11 energy (5 seconds) It sometimes is delayed to 9 or even 7 energy remaining. See clip below for proof.

@warcraftdevs This is likely a bug and it interferes with reasonable player ability to complete the no-death Hertz Locker achievement. Please take a look.

Cannot post links so here is what I can post:

https://clips.twitch.tv/AverageCarelessPlumberFailFish(##RESPBREAK##)908##DELIM##Uchur##DELIM##https://clips.twitch.tv/AverageCarelessPlumberFailFish

Comment by PigeonD

Also the blue punchcard Remote Circuit Bypasser reduces the area of detection of Detect-o-Bot.(##RESPBREAK##)258##DELIM##htam##DELIM##

Comment by VirtualVenom

I love this dungeon! Run it every week!

Comment by Thestis

K.U.-J.0. will cast Blazing Chomp on the Tank.
Had a resto druid that had a hard time dispelling this debuff. So druid tank went feral with guardian affinity and stayed in bear form for threat. Blazing Chomp was never cast - a way around this ability.

We discovered this when tank kept dying and dps were tanking and never got debuff.

Comment by Haldhur

So .... how do you go inside heroic junkwatt depot?

Comment by rapbandit

Can anyone confirm that Junkyard M+ end of dungeon chest drops the wrist for mages or you hv to run the workshop? Ty in advance!

Comment by Kurtosis

Tried solo'ing this on Heroic in TWW on 80 main. Got to HK-8 and the Overcharge Stations do not have 100 life as explained in the guide, but 604,800 life. And every time you stop and restart channeling, it restarts at 604,800. Seems impossible, but that's just an illusion.

Stand right next to the Overcharge tower, inside its ring that electrifies peridically, and channel on the tower till HK-8 goes Haywire. You won't get shocked or stunned standing there until HK-8 goes Haywire, and you only need to reduce the tower's life by about ~50 or so to trigger Haywire. Then run down and kill HK-8 while he's vulnerable.

Operation: Mechagon Megadungeon Ability and Strategy Guide

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