Cockroach Twin

Cockroach Twin (コックローチツイン) is the name of the two boss enemies at the end of Cossack Stage 3 in Mega Man 4, fought one at a time. The first one stays on the ceiling, and the second walks around the whole room in a clockwise pattern. The room has spikes on the bottom, so the player must be careful when jumping. Drill Bomb and charged Pharaoh Shot are the best options against them.

Trivia

 * If the player uses Flash Stopper to finish the Cockroach Twins, they will not be able to leave and will have to die or reset the game. If the player uses Wire to finish the enemies (using it when they are on the the ceiling), then they will be stuck there until the player drops.