Mario Power Tennis
Event mode
At the title screen, hold Z and press Start.
Random character or court
At the character or court selection screen, press X to randomize your character or court selection. This will not randomize your character’s attributes (Hand or Star) and will not randomize your game mode.
Taunts
When your opponent hits the ball, press A or B.
Skip credits
After you have seen the credits at least once, hold Start + A to skip them.
Star Cup
Win all three Normal Cup tournaments to unlock the Star Cup.
Moonlight Cup
Win all the Rainbow Cup tournaments to unlock the Moonlight Cup.
Special court options
Play a special court in the Special Cup to get more options for that venue.
Bowser court
Win the Special Cup Fire tournament in singles mode to unlock the Bowser court.
Mario Bros. court
Win the Special Cup Lightning tournament in doubles mode to unlock the Mario Bros. court.
Play as Hana-Chan
Win the Special Cup Fire and Thunder tournaments in singles mode to unlock Hana-Chan.
Play as Paratroopa
Win all three Normal Cup tournaments in doubles mode to unlock Paratroopa.
Play as Petey Piranha
Win the Special Cup Fire and Lightning tournaments in doubles mode to unlock Petey Piranha.
Play as Shy Guy
Win all three Normal Cup tournaments in singles mode to unlock Shy Guy.
Play as Wriggler
Win the Special Cup Fire and Lightning tournaments in singles mode to unlock Wriggler.
Balloon Panic mini-game
Win the Flower Cup tournaments in singles mode to unlock the Balloon Panic mini-game.
Coin Collectors mini-game
Win the Mushroom Cup tournaments in singles mode to unlock the Coin Collectors mini-game.
Mecha Bowser Mayhem mini-game
Win the Mushroom Cup tournaments in singles mode to unlock the Mecha Bowser Mayhem mini-game.
Easy win in Mecha Bowser Mayhem mini-game
Once you get Petey Piranha it will be easier to win. She is tall enough to hit Bullet Bills when they come out.
Star for character
Win all three Normal Cup tournaments with a character to unlock his or her star version.
Ace difficulty
Win the Planet Cup tournaments in singles or doubles mode to unlock the Ace difficulty setting.
Alternate Yoshi’s defensive power shot color
Win the Flower Cup tournaments in doubles mode to change Yoshi’s defensive power shot color.
Character bloopers
Play tournament mode and complete the first three championships (Mushroom Cup, Flower Cup, Star Cup) to view the credits, and watch some animated outtakes from the opening FMV sequence. Successfully complete the next three championships you unlock from this (Rainbow Cup, Moonlight Cup, Planet Cup) to view the credits again, but with entirely new outtakes.
Toad and Toadette appearance
In the introduction sequence when Wario and Waluigi look at the big scoreboard, you can see Toad and Toadette on the first part to the left on the scoreboard. Note: They are not playable characters.