When Beast Boy faces off against Cinderblock, he ends up getting an injury that severly disfigured his face. After recovering, he was left with a scar. He is initially horrified by his new appearance, but his friend Cyborg reassures him that it makes him look tough. Misinterpreting his friend's message, Beast Boy is determined to look "tougher", and begins to intentionally injure himself so that his body parts continuously get replaced by robotic parts. Eventually, he is left with nothing but a head and an eye, with the rest of his body completely robotic. In this form, Beast Boy dubs himself as "Scar Man", for he no longer considers himself a boy, but a giant man and gains Raven's strong feelings of attraction towards him.
Scar Man is a alternate identity of Beast Boy. As Scar Man, he has a huge, muscular robotic body with spikes on each shoulder and with two chains laying up and down on his torso. He is also very tall and has a tank over his head. He also has an eye patch over his left eye.