In the "Dr. Mario" games first seen in 1990, Mario is a doctor. In 2001, Mario appeared in "Dr. Mario 64", an updated version of the original puzzle game. Dr. Mario appeared as an secret character in the Nintendo GameCube game "Super Smash Bros. Melee", and in another newer version, "Dr. Mario Virus Buster", for WiiWare. In the Game Boy game "Mario's Picross", Mario is an archaeologist.