Carnage Force 0 (カルネージ・フォース０ Carnage Force 0?), shortened as Carnage 0 outside Japan, is the second boss of Mega Man Zero 4. Carnage Force 0 is a large flying Mechaniloid that can attack with powerful punches, launch a shower of missiles from the shoulders, and release energy rings from the head. Zero fought against Carnage 0 when he was investigating Area Zero. After Carnage 0's defeat, Zero meets Craft and the Einherjar Eight Warriors, discovering that Dr. Weil plans to destroy Area Zero.