Isaac is a titular major antagonist in The Binding of Isaac indie roguelike series, serving as the main antagonist of Ending 13.
The direct and completely identical representation of the main protagonist Isaac himself, he is fought at the end of the Cathedral.
Biography[]
At the boss stage, Isaac appears in his first phase, somber and scared, and does not attack the player until he takes damage. Once taking damage, he attacks the player with his various projectile attacks, which progressively doubles and triples as he takes enough damage. In his second phase, he stands up and summons angelic babies and attacks the player with his Crack the Sky light beams, projected at random locations. In his third and final phase, he grows a pair of angelic wings and gains the ability to teleport around. His main attack is teleporting offscreen and covering all of the boss room with his light beams. Upon his defeat, Isaac is seen teleporting away, instead of dying as many of the other bosses.
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 Villains
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Isaac's Family Final Bosses Ultra Harbingers Harbingers Seven Deadly Sins Bosses Other The Legend of Bum-bo The Binding of Isaac: Four Souls Warp Zones | ||