Boss code:
At the player select screen, select "Yes" when it asks if you want to team
edit, then press and hold "Start", while entering the following: (Up +
Circle), (Right + Square), (Left + X), (Down + Triangle).
Won demo options:
This will bypass the winning quotes/score bonus screen after you defeat the
final opponent in the match, thereby reducing the loading time between
matches. To configure this option, simply go to the options menu, place the
cursor on "Configuration" and press all four trigger buttons (L1 + L2 + R1
+R2) simultaneously. You should hear a sound, then enter the config menu, and
there will be a Won Dem On/Off option.
Quick reset to main menu:
Anytime during the game (except during loading), press and hold Circle +
Triangle + Square + X simultaneously, then press Start.