Whenever Isaac deals damage to an enemy, he has a chance to do one of the following:
Holds up one of the following types of poop, which he can throw with the fire buttons:
A normal poop.
A corny poop that spawns a blue fly every two seconds. Each corny poop can have up to 3 blue flies out at a time.
A burning poop that leaves behind a fire that damages enemies and blocks enemy shots. The fire lasts 5 seconds and can block five shots and/or deal three ticks of contact damage before disappearing (the first hit will deal 16.5 damage, the second and third will deal 11).
A green poop that emits a toxic cloud that deals 3.5 damage per tick to nearby enemies (10.5 damage per second). If an explosion or fire hits the cloud, it also explodes, dealing 15 damage to anything caught in the blast. When the poop is destroyed, it spawns a larger toxic cloud that can't explode and goes away after 5 seconds.
A black poop that continuously creates slowing black creep and, when destroyed, deals 10 damage to and confuses all enemies in the room. The poop will continue to create slowing creep even after it's destroyed.
A white poop, which acts the same as the one created by
. Isaac also gains the poop's effects while holding it.
A gray poop that is very resistant to damage and deals extra damage when thrown.
A bomb, which will explode after 1.5 seconds even if Isaac doesn't throw it. This bomb looks like a Butt Bomb, but will not have its unique effect. It will, however, use Isaac's bomb synergies.
All poops deal 15 damage to enemies they hit when thrown (up to 3 times in the case of gray poop).
Farts, dealing 5 damage to and poisoning nearby enemies and spawning a toxic cloud. If an explosion or fire hits the cloud, it also explodes, dealing 15 damage to anything caught in the blast.
Create a trail of brown creep that deals 1.5x Isaac's damage to enemies per tick (15x Isaac's damage per second). Standing on this creep causes Isaac to glow and gives him +1 damage, +~1.3 tears, and other effects, depending on what's in contact with it. This creep persists indefinitely.
If a black poop is in contact with it, the creep also slows enemies and gives Isaac slowing tears while he's standing on it.
If a toxic cloud is in contact with it, the creep poisons enemies and gives Isaac poison tears while he's standing on it.
If a burning poop is in contact with it, the creep burns enemies and gives Isaac