Cheats for Mario Tennis (NINTENDO64)
Left-handed character
At the character selection screen, hold L while selecting a character to make them left-handed.
Handicap
Win the Star Cup with a character. Then at the character selection screen, hold R while selecting that same character to make them have handicaps and be more powerful. If done correctly, a yellow star will appear in the bottom right of the screen (for player one) or bottom left of the screen (for player two). Press L + R to have a left-handed player that is also a star character.
Play as Shy Guy
Win the Star Cup/Singles Tournament.
Play as Donkey Kong Jr.
Win the Star Cup/Doubles Tournament.
Donkey Kong court
Win the Mushroom Cup/Singles Tournament with Donkey Kong.
Yoshi/Baby Mario court
Win the Mushroom Cup/Singles Tournament with Yoshi.
Birdo/Yoshi court
Win the Star Cup/Doubles Tournament with Birdo.
Mario/Luigi court
Win the Mushroom Cup/Singles Tournament with Mario.
Mario Brothers court 2
Win all the Doubles Tournament Cups with Mario. Note: This is another Mario Brothers Court, but not the alternate way to get the previous one.
Mario/Luigi Castle court
Win the Star Cup Doubles and Singles Tournament with Mario.
Wario Brothers court
Win all the Doubles Tournament Cups with Wario.
Piranha Plant court
Note: This court only works in Piranha Plant Challenge. Complete any court (perfect, all 50 balls) in the Piranha Plant Challenge with any character.
Special Cups
Win all the Tournament Cups with all the characters (including Shy Guy and Donkey Kong Jr.) to unlock the Special Cups, which are much harder than the previous ones. Press R while selecting a character at the character selection screen to access the Special Tournament in the menu. The three Special Cups in order are Rainbow Cup, Moonlight Cup, and Planet Cup. Once you win a Cup, you will move onto the next one.
Bonus difficulty level
Win the Planet Cup with all sixteen players to enable the max difficulty setting in exhibition matches.
See the same replay again
Press B while in a replay to see the replay again at different angles. This can be done at any point of the replay for as many times as desired.
Restart replay during demo
Wait at the title screen until the demo begins. Press B to restart the replay. Any other button will end the demo.
Better chance of winning
When playing against the CPU, if you win a game or a set in the match, save the game, then continue the game. In case you lose, you can continue from the saved game and start with the advantage.
