Partially-Eaten Cheese
Temporarily changes what game you're playing. Aged in an old arcade cabinet for decades, this cheese has become something of a delicacy, but only to those with refined palates.
QualityA
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Description
Aged in an old arcade cabinet for decades, this cheese has become something of a delicacy, but only to those with refined palates.
Effects
- While active, the player turns into Pac-Man, becoming invincible, granting flight, and instantly killing any enemies they come in contact with. The player can still shoot in this mode.
- This item can eat enemies that are usually invulnerable: this includes the Gunreaper , Lead Cube and Flesh Cube . The only non-boss enemies unaffected are the Gripmaster , Dead Blow and the Lord of the Jammed .
- Bosses take 30 damage instead of dying instantly, and the player will bounce off them.
- Teleporting while the item is active will deactivate the transformation.
Synergies
If the player also has 
Rat Boots , 
Elimentaler , and 
Resourceful Sack , the player becomes the Resourceful Rat, preventing items from being stolen when they're left behind in rooms.
Notes
- Eating a Mimic used to cause it to not drop an item, but this has since been patched.
- Eating Keybullet Kin or Chance Kin causes them to drop two keys or pickups. Eating a Jammed Keybullet Kin or Chance Kin will not have them drop four pickups, however.
Unlock Method
Pick it up after finding it in one of the 
Resourceful Rat's chests .