Mario Tennis (Nintendo 64)

Mario Tennis is a Nintendo 64 video game, later released for the Game Boy Color. It features Mario and his friends playing a classic game of tennis, with a few Mario twists. It was originally going to be called Mario's Dream Tennis, but was changed for unknown reasons. This game marked the debut of Waluigi, and also Princess Daisy and Birdo's re-entries into the Mario series. The game also mark the first break in continuity, as Baby Mario and Donkey Kong Jr. along with their older counterparts.

Playable Characters
Mario Luigi Wario Waluigi Yoshi Birdo Toad Baby Mario Peach Daisy Paratroopa Boo Bowser Donkey Kong Donkey Kong Jr. (unlockable) Shy Guy (unlockable)