Dr. Robotnik's Mean Bean Machine is a modified reskin of the Japan-exclusive Sega Mega Drive version of Puyo Puyo. The first training levels of Puyo Puyo were removed from Dr. Robotnik's Mean Bean Machine, but they can be put back in through hacking. If this is done, the Puyo Puyo characters Skeleton T., Nasu Grave, and Mummy are replaced by a character that has the intro of Coconuts with the mugshot of Scratch.