Guppy's Tail
ItemRebirthUnlocked
passiveGame ID 134★★★★
How do you unlock Guppy's Tail?
Verified starting unlockSource data confirms that no unlock is required.
Room Clear Awards have a 1/3 chance of being replaced with a Chest and a 2/9 chance being replaced with nothing.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Guppy's Tail leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13