The Cossack Catcher (コサックキャッチャー Kosakku Kyatchā?) is the machine that Dr. Cossack uses against Mega Man in the fourth stage from Dr. Cossack's Citadel in Mega Man 4. Dr. Cossack based its design on games that he was good at when younger. Its magic hand (claw-shaped manipulator) is capable of causing heavy damage to what it catches.