|“||Welcome to my chemical paradise!||„|
|~ Acid Man|
|“||You ruined my new concoction! Take an acid bath!||„|
|~ Acid Man|
Acid Man is one of the 8 Robot Masters fought in Mega Man 11. He is fought in a laboratory-type stage.
Acid Man was originally a chemist robot manufactured by the Mecha-Chuchets Institute of Robology. He has a green body. His right arm ends in a cannon and his left arm ends in a five-fingered hand. His feet have two toes which point in opposite directions, making him look slightly avian.
Described to be a perfectionist, Acid Man will make sure every bit of chemical mixture is perfect and will throw a fit if those mixtures were to be tampered with. However, he will not tolerate any of his co-workers calling him the "Acid Merman" while he is not looking. Dr. Wily's reprogramming has altered him to have a "mad scientist" personality.
Acid Man was first seen in the game's opening cutscene, getting his annual maintenance alongside the other seven Robot Masters.
However, he was shortly kidnapped by Dr. Wily who barged inside Dr. Light's lab. After the incident, Acid Man was reprogrammed by the evil doctor.
He fought Mega Man twice (the first time in his stage and the second time in Dr. Wily's Gear Fortress) but was defeated.
In the end, Acid Man was reprogrammed back to his original and kind-hearted self. He took a group photo with Mega Man, Roll, Dr. Light, Beat, Rush, Auto, Eddie, and the other seven Robot Masters.
Acid Man will activate his Acid Barrier (the weapon Mega Man gets after Acid Man is defeated) to protect himself. The barrier can be instantly destroyed with the Block Dropper weapon. Acid Man will also shoot globs of acid. Once his health meter reaches critical, Acid Man will activate his Speed Gear to move faster. Acid Man's weakness is the Block Dropper.
- Acid Man can be seen in the background of his stage, swimming in the acid tubes.
- Acid Man is the only Robot Master in Mega Man 11 whose name starts with a vowel, that being A. The other seven start theirs with consonants. (Tundra Man and Torch Man start their names with "T", Block Man, Blast Man, and Bounce Man start theirs with "B" (Though in Japan, Bounce Man (as Rubber Man) started his name with the letter "R", and Block Man was originally going to be called "Renga Man" in Japan, with his name beginning with an "R" as well.), Fuse Man starts his with "F", and Impact Man starts his true name Pile Man with "P".)
- The fact that his weapon can cause extra damage to Pile Man/Impact Man is an allusion to acid's ferrovorous effects. At the same time, his own weakness to Block Man's Block Dropper is an allusion to how acid-resistant a brick can be.
- He is the only Robot Master that did not appear in any previews.