Chub Portrait
Character Information
Character Type Boss
Floors of


Base Health
Heart flash
Items Dropped Boss Pool

Chub is an enemy in The Binding of Isaac: Rebirth that is present as both a Boss on The Caves floor and as a Monster in Boss Challenge Rooms, during Boss Rush, and on later floors.


Chub has a unique weakness in which, when the player places a bomb in front of her while she is charging, Chub will eat the bomb, freeze in place, then explode, taking damage from the bomb. Chub's attacks are as follows:

  1. Chub will charge at the player when the player is aligned with her (cardinal directions), dealing contact damage.
  2. Chub will occasionally defecate Chargers from her rear end.

Champion Variants

Chub will randomly spawn as one of two champion variants:

  1. Chub will be orange/yellow and is both faster and smaller than her normal variant. Instead of Chargers, she will spawn Spitties.
  2. Chub will be blue and larger than her normal variant. Instead of Chargers, she will spawn blue champion Boils.


  • Chub is confirmed to be female.
    • This, however, is odd, for, in the artbook featured in the Unholy Edition, Chub is also nicknamed Mr. Maggot.

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