Ultra War

Ultra War is a boss added in The Binding of Isaac: Repentance and is the third of the Ultra Harbingers fought before The Beast in.

Phase 1
Ultra War charges in from the side of the screen and has two attacks which it alternates between:
 * Throws a large, Giga Bomb that deals contact-damage and explodes mid-air in a cross pattern that spreads across the entire screen similar to Bombs. The Bomb also releases a burst of 8 lines of 4 projectiles in the cardinal and diagonal directions when it explodes. This attack is repeated 3 times.
 * Charges off-screen, then wraps around the bottom of the screen 3 times creating 4 to 6 pillars of harmless light in alternating positions across the screen from which large lava projectiles launch upwards with staggered timing.

Phase 2
Ultra War dismounts from its hobby-horse and has two new attacks which it alternates between:
 * Chases Isaac, then lunges diagonally downwards in Isaac's direction. After, Ultra War releases 4 streams of fire in the cardinal directions as well as a small burst of slower moving fires in all directions. This attack is repeated 2 times.
 * Lunges diagonally downwards while holding a large bomb which explodes in a cross pattern that spreads across the entire screen. Ultra War then bounces across the sides of the screen 3 times while moving upwards before plummeting into the lava below. When Ultra War emerges, it creates 4 to 6 large lava projectiles which launch upwards with staggered timing.


 * Upon death Ultra War explodes which can damage Isaac at close range.

Trivia

 * Ultra War, like the other Ultra Harbingers is an upgraded version of its regular counterpart, War.