"Hopefully you don't measure your success in bullets. They're everywhere." -AviDescription: These are used to supply your guns with ammo. Each time you take one, you get 1-3 at random. It's only found in the dungeon on the ground, looted from enemies, and is purchasable in a dungeon shop for 1 coin.
Tip: If you have a gun already and you find an extra gun, take that extra gun for free bullets, then drop it if you don't actually want it.
What this item looks like in-game.