EXP/CP at level 1*: 3
Health at level 1*: 50
Attack at level 1*: 10
Defense: 0
Drops: Standard Drops
Iron Ore (common)
Pustosser Tail (quest)
Aeronaut Bomber (quest)
Pustosser Tumor (quest)
Locations: Steamport City
Hatchwood Wilds
Notes: Releases three pus tumors into the air on death.
XP per Health: 0.06

Pustossers (or Tumor Pustossers) are Mimics found in the Steamport City area, and in certain sections of the Hatchwood Wilds. Their grayish brown, furry bodies are covered with large purple tumors, which the creature then rips off to throw at the player. Upon death, the Pustosser shoots out 3 more tumors upwards. According to Cypress, his tumors have the same surface of the haze generating fungi.


Tips & AttacksEdit

A Pustosser attacks by throwing a purple tumor which looks like a purple orb at the player. The orb arcs into the air, making it easy to dodge if you are paying attention. Remember, Pustossers' purple orbs can travel through walls. Also one Pusstosser in the factory is above the player, but capable of throwing tumors that can hit the player, and also knock them out the air as they jump. Their throws will always be aimed at the player at the time it releases the orb. This means the player can usually move left or right to dodge the attack.


Run up close and fire, before running away to dodge the tumor (which will be launched almost straight up). Shooting from further away makes it harder to dodge the tumor, as its trajectory is straighter.


Get close to the Pustosser and attack it as many times as possible before it throws a pus ball. When it does, take a couple of steps back, or backdash out of range. Once it has been defeated wait until it throws all three orbs, and once they have landed, retrieve your prize. Be careful though, if it was about to throw a tumor when you killed it, it might still be thrown. Alternatively, you can also use the tumble roll to damage it, and when it is invulnerable, you can use the tumble roll again to get through it and dodge the tumor, without bouncing back, this leaves you unharmed. Face the Pustosser again and repeat.


Run close to the Pustosser and hit him twice. When he attacks run backwards, then attack him again. Alternately, you can swing into him and attack him quickly from above.

Additional InformationEdit

Sprocket DataEdit

Mimics of Steamport City Pustosser

Sprocket Image for the Pustosser

From Mimics of Steamport City: Pustosser:

  • This revolting Mimic has large growths all over his body. If provoked, it will rip the growths off and toss them at intruders.
    First Encounter: West End Ruins

Quest RelevanceEdit

Pustosser Jackets

A jacket-wearing Pustosser.

Trophy FarmingEdit

Pustosser Steamport City

Pustossers Locations in Steamport City

Pustosser Hatchwood Wilds

Pustossers Locations in Hatchwood Wilds

The room directly above the Sump Pump Checkpoint in Steamport City contains three Pustossers, as well as two Rockbugs, a Rockrat and a Pugcrawler. Jumping out of Steamport City will cause all mimics to respawn.

In the Hatchwood Wilds loop in the lower-left, there are also three Pustossers you can kill. This is particularly advantageous if you are farming for other mimics as well.

The fastest pusstosser farming method is simply to drop into the sump pump CP, go right then up and kill three pusstossers. Press M and select your float, pressing M again before this loads and repeating the process.

Another technique is to go to sump pump checkpoint, kill the 3 in the room above then all the other enemies, then go down, down, up, left, killing the one in that room and possibly the Hazebug. Then go up, left to a checkpoint, jumping to the sewer entrance and go right, and follow the path down and around a bit killing the 2 Pustossers on that path. Then go back to the checkpoint, jump to sump pump and start again.

A 4th way would be to jump to the sump pump checkpoint, then kill the 3 in the room above you and possibly the one near that, (down, down, up, left) then jump to the guardian checkpoint in HW, and go, left, up, right, right, and kill the 3 there, then jump back to sump pump and start over, an advantage to this route, is there is no need to kill other mimics for them to respawn

Related EnemiesEdit