吃了一口的奶酪

• 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.

• Resourceful Indeed - If the player also has [鼠靴子] , [滋补者] , and [百宝袋] , the player becomes the Resourceful Rat, preventing items from being stolen when they're left behind in rooms.
• 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.

Pick it up after finding it in one of the Resourceful Rat's chests .