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Item icon
Item altar
"Extra life"
Table dividing line 1.png
Item ID
Table dividing line 2.png
Item Pool
Normal and hard modes only Secret Room Secret Room
Added in Afterbirth Greed and greedier modes only Boss Boss
Table dividing line 3.png
Collection Grid
Removed in Afterbirth(page 1, column 1, row 2)
Added in Afterbirth(page 1, column 11, row 1)

1up! is a passive item.

Effects[edit | edit source]

  • Grants an extra life.
    • On resurrection, the mushroom that follows Isaac will disappear and Isaac will respawn in the previous room with all his previous Red Heart containers at full health.
    • If Isaac has no Red Heart containers, he'll respawn with 1/2 Soul Heart instead.
  • The 1up! mushroom begins following Isaac like a familiar upon pickup, but doesn't do anything.
  • Added in Afterbirth This item belongs to the Fun Guy set. Collecting three items from this set will transform Isaac into a walking mushroom.

Notes[edit | edit source]

  • Resurrection from 1up! takes priority over all other resurrection items.
  • ??? ??? will respawn with 3 soul hearts.
  • Added in Afterbirth † The Forgotten The Forgotten will respawn with 3 filled bone hearts (notably more than his starting HP) and The Soul The Soul with whatever soul and black hearts he had on death.
    • Dying as The Soul respawns him with 1/2 Soul Heart and The Forgotten with whatever bone hearts he had on death.
  • It is possible to collect more than one 1up! items, resulting in multiple extra lives.

In-game Footage[edit | edit source]

Seeds[edit | edit source]

PC LDPB D0QG (15►X-Ray Vision X-Ray Vision adjacent to spawn, first Secret Room to left from spawn, unless you have 15►Forget Me Now Forget Me Now unlocked)

PS4 PC Normal mode only CWSQ TNM8 (first Secret Room right from spawn)

Trivia[edit | edit source]

  • This is a reference to the Mario franchise, where collecting a green mushroom would give you an extra life.

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