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1up! item
1up! is a familiar in The Binding of Isaac.
Description
+1 extra life.
Grants a familiar that follows Isaac.
Respawns Isaac with full health in the previous room, or half a soul heart if he has no red heart containers.
The item is removed from Isaac's inventory after it respawns Isaac.
Note
This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this item for the previous Repentance version, check this page instead.
Transformations
Fun Guy transformation. Collecting 3 items from this set will give Isaac +1 full red heart container.
Item pools
1up! can be found in the following item pools:
| Name | Weight |
|---|---|
| Secret Room |
1.0/1.0
|
| Greed Shop |
0.1/1.0
|
| Greed Secret Room |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| uniquefamiliar | Cannot be duplicated via  Box of Friends. |
| mushroom | Contributes towards the Fun Guy transformation. |
Internal item description
Below is the Internal Item Description as shown in-game.
Note that some stat changes are not displayed here. Please see the main description for the full effects.
1up!
• Grants 1 extra life
• Abyss: x1 locust 1x Isaac's damage
External links
- Check out the item description on the external Isaac Wiki.
Brother Bobby 
Skatole 
Halo of Flies 
Magic Mushroom 
The Virus 
Roid Rage