Slam Tennis Codes -

Big heads:
Submit 1BH as your initials at the high score screen.

Crazy mode:
Submit 5CM as your initials at the high score screen.

Equalize stats:
Submit 3ES as your initials at the high score screen.

Infinite special:
Submit 4IS as your initials at the high score screen.

Time of day:
Submit 2TD as your initials at the high score screen.

Unlock kits:
Submit 7UK as your initials at the high score screen.

Unlock players:
Submit 6UP as your initials at the high score screen.

Unlock stadiums:
Submit 8US as your initials at the high score screen.

Unlock all cheats:
Submit 9AC as your initials at the high score screen.