Up'n'Down

Up'n'Down (アップンダウン) is a small robot from Mega Man 4 and Mega Man III that were originally used for sprinklers. They emerge from pits to try to knock Mega Man into the pits when he tries to cross without defeating them. In Mega Man 4, they appear in Dust Man's stage and in the first and fourth areas of Dr. Cossack's Citadel. In Mega Man III, they again appear in Dust Man's stage and in the final level.