Cheat mode
Get a high score during a challenge game. Then, enter one of the following initials at the high score screen to activate the corresponding cheat function:

All bonuses
Enter "9AC" as your initials to unlock all bonuses.

All stadiums
Enter "8US" as your initials to unlock all stadiums.

All players
Enter "6UP" as your initials to unlock all players.

All kits
Enter "7UK" as your initials to unlock all kits.

Infinite special shots
Enter "4IS" as your initials.

Crazy mode
Enter "5CM" as your initials.

Big heads
Enter "1BH" as your initials.

Equalize stats
Enter "3ES" as your initials.

Time of day
Enter "2TD" as your initials.