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Playstation - Tennis Arena cheats

Super backhand
During the game play, hold R1 + R2 and push X, Square, Circle,
Square, X, Triangle buttons in order on your controller. 
After that release R1 + R2, and hit Select.

Unlock Bonus characters and Canyon court in Smash Tennis mode:
Press Up, Down, Left, Right, Start at the Smart Dog logo screen. 
Voice will confirm the correct code entry.

Tennis Arena Game Shark Codes:
            
Always Super Special Shot for Player 2
801CBDFC 000A
            
Player 1 Scores Always zero              
301CBF60 4000

Player 1 Starts Off With A Score Of 40 
D01CBF60 0000
301CBF60 4040