Mad Grinder

Mad Grinder (マッドグラインダー) is a steamroller robot from the Mega Man series with a punk-like appearance.

Mega Man 7
Mad Grinder is one of the robots that helped Dr. Wily escape from prison. When Mega Man faces him in the Opening Stage, he is shown to have suffered damage during the attack on the city. He attacks by throwing his hair like a cutting boomerang and trying to run over Mega Man with his roller.

Mega Man 2: The Power Fighters
Mad Grinder is the penultimate boss from the "Search for Wily!" course in Mega Man 2: The Power Fighters and Rockman Battle & Fighters. He appears without damage and improved abilities, like lift his roller to smash the enemies and breathe fire. He is vulnerable to the Centaur Arrow.

Other appearances
Mad Grinder has a cameo appearance in the background of the stage Dr. Wily's Military Base in Marvel vs. Capcom: Clash of Super Heroes.

Mega Man (Archie Comics)
Mad Grinder has cameo appearances in issue 20 and 27.

Rockman 7
Mad Grinder appears in the manga.