1up!
ItemRebirthUnlocked
passiveGame ID 11★★★★
How do you unlock 1up!?
Verified starting unlockSource data confirms that no unlock is required.
Gives Isaac an extra life. Upon death, he will respawn in the previous room with full health, after which 1up! will disappear.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking 1up! leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13