Boomer Kuwanger is a robot as powerful as Magna Centipede, also leader of the Dark Community. After Sigma rebelled, Kuwanger followed him considering his choice to be logical. After being defeated by X, he retired and eventually went into the same portal as Magna Centipede (the portal got bigger), along with the other entities inhabiting the Megaman Universe.
Boomer Kuwanger is almost as fast as Magna Centipede and can throw "C" shaped blades which act as boomerangs. He is very smart and can easily trick unprepared fighters. He is master in the arts of stealth.