I think he was just styled as the "anti-Mario." He was invented by the team, led by Yokoi, which did the Mario and Wario games for Game Boy, and I think they just wanted an identity different from Miyamoto and his home console Mario team.
"[Our former customers] are unable to find software which they WANT to play."
"The way to solve this problem lies in how to communicate what kind of games [they CAN play]."
Satoru Iwata, Nintendo President. Only slightly paraphrased.







