Binding of Isaac: Rebirth Wiki

(in Repentance)

Gello is an unlockable activated item added in The Binding of Isaac: Repentance.

Effects[ | ]

  • Spawns a demon familiar that's attached to Isaac, moving in the direction Isaac shoots, and automatically shooting (whenever Isaac is shooting) in the direction of the closest enemy to it, using Isaac's damage, tears, range, shot speed, and special tear effects.
    • The item is initially held over Isaac's head until he fires, which launches the familiar, dealing 3x Isaac's damage.
    • If Isaac has any tear modifier that requires him to charge his shots (like Collectible Brimstone iconBrimstone), Gello will automatically "release" the fire button for himself every time he is fully charged. If Isaac releases the charge button himself, Gello will do that too, regardless of his current charge of an attack.
    • Gello's tears deal 0.75x Isaac's damage, or 1.0x if used by Character Lilith iconLilith or Character Tainted Lilith iconTainted Lilith.

Notes[ | ]

  • Character Tainted Lilith iconTainted Lilith attacks in a way nearly identical to this item, except she can recall it and launch it again.
  • If used multiple times in the same room, the Gellos will eventually overlap perfectly and appear as one after some movement, but all remain functional. This makes Gello exceptionally powerful in Greed Mode, Boss RushBoss Rush, and against Boss The Beast ingameThe Beast.

Synergies[ | ]

  • Collectible Book of Virtues iconBook of Virtues: Spawns a red wisp on the middle ring. The wisps will orbit Gello instead of Isaac while it's active.
  • Character Tainted Azazel iconTainted Azazel: Each time Gello starts charging an attack, he will "sneeze" just like Tainted Azazel does, cursing enemies in front of him. This allows Tainted Azazel to keep enemies cursed without needing to come up to a dangerously close distance to them.
  • Character Tainted Lazarus iconTainted Lazarus: The familiar persists when switching states.
  • Collectible Uranus iconUranus: When the baby is launched, any enemies it kills in its trajectory will freeze and any frozen enemies the baby is launched into slide if Isaac is moving, similarly to when kicked by Isaac.

Interactions[ | ]

In-game footage[ | ]

Trivia[ | ]

  • Gello is a revenant in Greek mythology who causes infertility, miscarriages, and infant mortality.
  • It is implied to be a fetal Collectible Incubus iconIncubus.

Bugs[ | ]

Bug Bug! Using ? Card? Card on Gello will still result in the charges being used once Gello is whipped out. The ? Card will be used up as well, despite providing no free use of the item.