Mongo Baby
ItemRebirthUnlocked
familiarGame ID 322★★★★
How do you unlock Mongo Baby?
Verified starting unlockSource data confirms that no unlock is required.
Spawns a familiar who follows Isaac around and cycles between the tears of Isaac's other familiars.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Mongo Baby leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13