On Stage 3, win the fight with 5% health or less left (about 1/2 the length of 1 round win count icon) if done correctly the announcer will yell 'Great'. The disk will have 3 tracks on it tracks 1 and 3 are just be really long tracks that don't play anything, but the second is a hidden music track. If you do this trick again, your character will be even fatter in the next match. Continue to hold the button until the match begins and your character will turn fat.
Press and hold the select button before the 'VS' screen appears. After winning a round and you see the replay showing, pressing each button(, , etc.) will result in a different victory animation.
