When serving in a match, press [Down] + [Slice] + [Top Spin].
Easy points
While defending to receive a shot from opponent, just before the opponent hits it, make a move in any direction and then in the opposite direction. You will always receive the ball at the opposite direction where you moved last.
Frying Pan racket
Get three strikes in a row in the Pin Crusher mini-game.
Guitar racket
Defeat King or Duke in a SPT final.
Play as Duke
Select Tournament mode and win the singles matches without losing to the CPU and get a flawless "C" or better rank. When challenged by Duke, defeat him to unlock him as a playable character.
Play as King
Select Tournament mode and win the singles matches without losing to the CPU and get a flawless "D" or worse rank. When challenged by King, defeat him to unlock him as a playable character.
Quick Volley skill increase
In Career mode, play the "Defend The Prize" mini-game repeatedly. Choose one prize and stand in front of it (ignore the others). Simply defend that one prize. You will easily win the mini-game every time and be able to increase your Volley skill as quickly as desired.
