Binding of Isaac: Rebirth Wiki
Advertisement

Added in Repentance

Great Gideon is a boss added in The Binding of Isaac: Repentance that can appear in Mines Mines and Ashpit Ashpit.

Behavior[]

Great Gideon is always fought in a vertical double-size room and additionally has no health. Instead, Isaac must battle 6 waves of monsters to beat him, similar to Greed Mode waves. He uses the following attacks during these waves:

  • Creates a vacuum that affects the whole room, pulling in Isaac and all monsters and monster projectiles. It also pulls in additional rock projectiles.
  • Spits 5 projectiles in a cone shape towards Isaac. The center projectile is larger and splits into 8 projectiles in a radial burst when it lands or hits something.
  • Charges up then spits large flame projectiles down the center of the arena that can occasionally leave small fires behind.
  • After the beginning of the 4th wave, Great Gideon charges up and releases a rock wave down the center of the room, breaking parts of the floor and leaving gaps.
    • There is always at least 1 gap between the trail of holes created by this attack as to not completely trap Isaac on either end of the room.
  • Gideon does not spawn the next enemy wave during the middle of any of his attacks and only progresses a wave once he has finished.

After Isaac defeats all 6 waves of monsters, Great Gideon will deactivate, similar to a regular Grimace.

Monsters[]

Mines Mines Waves[]

Name ID
Blaster
Blaster
821.0


Bouncer
Bouncer
822.0


Clotty
Clotty
15.0


Coal Boy
Coal Boy
820.1


Coal Spider
Coal Spider
818.2


Danny
Danny
820.0


Dragon Fly
Dragon Fly
25.3.0


Dragon Fly X
Dragon Fly X
25.3.1


Faceless
Faceless
827.0


Fire Worm
Fire Worm
825.0


Fly Bomb
Fly Bomb
819.0


Gurgle
Gurgle
87.0


Gyro
Gyro
824.0


Hardy
Hardy
826.0


Ink
Ink
61.2


Quakey
Quakey
823.0


Rock Spider
Rock Spider
818.0


Soy Creep
Soy Creep
240.1


Sucker
Sucker
61.0


Walking Gut
Walking Gut
88.1

Ashpit Ashpit Waves[]

Name ID
Big Bony
Big Bony
830.0


Blaster
Blaster
821.0


Bone Fly
Bone Fly
25.4


Bony
Bony
227.0


Carrion Princess
Carrion Princess
23.3


Coal Boy
Coal Boy
820.1


Coal Spider
Coal Spider
818.2


Crackle
Crackle
87.1


Danny
Danny
820.0


Dragon Fly
Dragon Fly
25.3.0


Dragon Fly X
Dragon Fly X
25.3.1


Dust
Dust
882.0


Flesh Maiden
Flesh Maiden
880.0


Fly Bomb
Fly Bomb
819.0


Gurgle
Gurgle
87.0


Hard Host
Hard Host
27.3


Hardy
Hardy
826.0


Migraine
Migraine
869.0


Necro
Necro
828.0


Pasty
Pasty
881.1


Rock Spider
Rock Spider
818.0


Splasher
Splasher
238.0

Gallery[]

Notes[]

  • Great Gideon can be instantly killed with Chaos Card Chaos Card. Doing so reveals a unique 1x2 Crawl Space Crawl Space beneath him, containing two locked chests, two items and a key.
    • This can be done at any time, even if he has already been defeated as his deactivated body still remains after returning to the room.
    • Great Gideon has a unique animation for being defeated via the Chaos Card.
  • Completing waves will not charge active items.
  • Vanishing Twin Vanishing Twin will duplicate Great Gideon and increase the number of waves by 2. The waves themselves contain no extra enemies.

Trivia[]

  • He is the boss version of Stone Grimaces.
  • Great Gideon's name likely comes from Gideon, an Old Testament prophet and military leader known for winning a decisive battle against an overwhelming Midianite army with only an army of 300 Israelites.
  • The name Gideon is said to mean “hewer” which is an individual who works in a mine breaking stone.
  • Great Gideon is one of the only bosses with a unique health bar, aside from Dogma.
  • The crawl space that opens up when using Chaos Card on Gideon is titled 'Gideon's Grave' in the game's code.
    • According to NotYourSagittarius, this is a direct reference to Scott Pilgrim, a series of graphic novels.
  • If Great Gideon is fought outside of Mines Mines or Ashpit Ashpit via a IV - The Emperor? IV - The Emperor? card, he has preset waves consisting of Frowning Gapers, Wall Creeps, Round Worms, Gurgles, and Suckers.
  • Great Gideon is the only boss that can be seen in their boss room during the Ascent, appearing in his deactivated state when ascending to the Mines Mines.
    • Since all variant floors are replaced by the original ones in this sequence, if Great Gideon was encountered in the Ashpit Ashpit during the normal descent, he will still appear in the Mines Mines during the Ascent.

Bugs[]

Bug Bug! Spawning Great Gideon with the debug console will spawn him with a normal boss healthbar instead of a "waves" mechanic. Attempting to attack him will result in a game crash.
Bug Bug! Entering the trapdoor left after killing Great Gideon with the Chaos Card during the Ascent will result in a game crash.


Advertisement