Mario Tennis

Mario Tennis (マリオテニス64) is a video game that was developed by Camelot Software Planning and published by Nintendo for the Nintendo 64 in 2000. This is the sixth Mario game for the Nintendo 64.

A sports game in the vein of Mario Golf, Mario Tennis gathers allies and foes of Mario together to play tennis.

Through the use of an N64 Transfer Pak, a player could import his or her characters from the Game Boy Color version of Mario Tennis to the N64 game. It could also import the player's stats.

This game is notable for the introduction of Waluigi, an antagonist of Luigi and brother to Wario, the reintroduction of Princess Daisy (her last appearance was as Luigi's caddy in the 1991 game NES Open Tournament Golf), and first-ever appearance of Birdo as a controllable character. This game is also the first Mario game where Princess Peach spurts out hearts when hitting the ball; which has remained in subsequent Mario sports titles.