CheatCodes.com has all the official Mario Tennis Game Boy cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Saturday May 18, 2013 for Mario Tennis are shown below. We also have this game on Nintendo64, Game Boy, and sometimes tricks from other game systems will also work on Game Boy.
Most of you know that to get the rackets you have to equip the iron racket and talk to the boy by the lake and swing your racket 100-150 times. To do this without wearing out your finger use a bottle cap or something flat and rub it back and forth on the a and be buttons as fast as you can.
This ones pretty simple. If you start off with Kate as your dorm partner the dorm will be pink with a cat in it that says meow when you talk to it. If you choose harry you get a plain blue room.
When you first start the game you wont be able to pick your partner. If you choose the boy youll automatically get Harry. If you choose the girl you automaticaly get Kate. To be able to choose your partner beat the game succesfully on doubles and singles with one pair. Start a new game and you can use which ever partner you want.
Once you have made it to the varsity singles, go to the lake. you will find a kid swinging his racket, tell him he sitnks. Swing your racket 150 times in 10 seconds. You will get the gold racket.
After you made it into varsity singles, go to the lake, you will find a kid swinging his racket. Tell the kid he stinks. swing your racket 100 times in 10 seconds to get the silver racket.
If you lose a game in RPG mode, pause the game immediately before the score appears. Save the game, quit, then resume the game you were just playing. The game (not match or set) will be reset.
Unlock the Nintendo 64 characters, then check the mini-game screen. More entries should be available. To unlock even more mini-games, win the Junior, Senior, Varsity, and Traveling Leagues in Singles and Doubles.
Make sure you have the Iron Racket equipped, then go to the training courts. Go up to the lake and follow it until you see a boy practicing his swing. Tell him you do not like it and you will show him your swing. He will laugh, and you will get angry. Next, get ready to swing. In ten seconds, press A as many times as possible. If you press it 100 times, you will get the Silver Racket. If you swing it 150 times you will get the Gold Racket. Note: Try wrapping your hand in your shirt and rub it over A until it ends. You should be able to get either racket this way.
Use the Transfer Pak with the Nintendo 64 version of Mario Tennis. Select "Transfer" at the main menu, then select "Game Pak Check". After it checks, an icon that says "Transfer N64 Characters" will appear. This will allow you to play as Bowser, Waluigi, Wario, and Yoshi.
Successfully complete the game in Doubles.
Successfully complete the game in Singles.
Defeat the students you face in the Junior, Senior, Varsity, and Traveling Leagues to unlock them at the character selection screen.
Play Mario's Boo Blast mini-game, complete levels 1 and 2, and beat the high score to unlock the Star Court
Play Donkey Kong's Banana Bunch mini-game and win both levels. When you get to the third level, beat the high score of 60 to unlock the Jungle Court in linked play and exhibition modes.
Play Baby Mario's Target Shot mini-game and win both levels. When you get to the third level, beat the high score of 60 to unlock the Tropics Court in linked play and exhibition modes.
Play Luigi's Shooting Star mini-game and win both levels. When you get to the third level, beat the high score of 60 to unlock the Castle Court in linked play and exhibition modes.
Found some tricks that we don't have? Got some helpful hints, tips, or tactics we don't know about? Tell us and you could win a free Game Boy game (or any other game you want for any video game system)!