The Four Commanders are the main villains in the game Bomberman Quest.
In Bomberman Quest, Bomberman was returning from a mission on which he had captured several cells full of monsters. He was attacked by the Four Commanders, each of whom stole one of the Bomber Shuttle's engines. Each Commander had his or her own dungeon in a different zone, and waited for Bomberman to face them. He took them down one by one, presumably taking them as prisoners along with the monsters. They were led by Chaos Bomber.