Acid Man is a Robot Master who appears in Mega Man 11. Originally a chemist robot manufactured by the Mecha-Chuchets Institute of Robology, Acid Man was reprogrammed into a stereotypical "mad scientist" after being stolen by Dr. Wily, and now uses his chemistry skills to do Wily's bidding. He was also given a Speed Gear to boost his combat abilities. His Special Weapon, Acid Barrier, generates a shield made of acid that not only protects him from all damage, but also lets him shoot globs of acid at enemies. This ability extends to Mega Man after he defeats Acid Man.

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