Power Serve
Enter "PWRSRV" as a password. Then jump and press [A], [B]x2, [A] while serving,
Double Handed Blast
Enter "DBLBLST" as a password. Go to the net, and when your partner passes the ball to you, press [A]x2.
Spin Fury
Enter "SPNFRY" as a password. Go to the net, and when your partner passes the ball to you, press [B]x2, [A].
360 Killer Smash
Enter "KLRSMSH" as a password. Go to the net, and when your partner passes the ball to you, press [B]x3, [A].
Activate all combo moves
Enter "CMBMVS" as a password.
New York level
Enter "NWYRK" as a password. The New York level is now unlocked in single match and multi-player modes.