Input the following cheats in the in-game menu:

CHUWAY ... Activate 2P Co-Op mode.
NOTTIRED ... Endurance expenditure disabled. Correction from prettycrazy.
PIPPED ... Unleash icons increased twice.
CLASHY ... Activate super clash mode.
BIGDOGS ... Activate super unleash clash mode.
ONFIRE ... Fiery ball tail always visible.
BOUNCY ... Decreases gravity on ball.

Input CHAMPS on the cheats menu. Go to campaign mode and press BLUE, BLUE, YELLOW to instnatly win against the selected team. (Unverified)

Make a wager and start the game. If you see you aren't going to beat the spread, quit the game and try again without making another wager.

The wager that you originally placed during your first attempt will still be retained (note your deck should not be rebooted). Try to keep the as close as possible to beat the spread. If you go in with guns blazing, especially during the easier Division III games and win by a ton, it won't take long until you find yourself tyring to win by 21 points every time to collect on your bet. Keep the scores under control and fix your games.