Dan Hibiki

Dan Hibiki is an optional boss in A Koopa's Revenge 2. The player must go all the way to Castle Mario while beating the minimum amount of levels possible, and when he/she enters the boss room Mario will be replaced with Dan Hibiki.

Dan can be defeated with a single stomp or a powerup projectile.

He originates from the Street Fighter series as a joke character in which he was designed as a parody of rip-off characters.