> Go to the Character Select Screen. Highlight Siba and press X for the blocky, old-school version of him. Highlight Bark and choose him by pressing A+B+C and he'll be wearing a Santa suit. Highlight Candy and press A for the Red/Black costume, or press C for the Yellow/Brunette costume.

> Pause a game with Start, then press X+Y+Z to get a clean pause.

> After playing 100 rounds you'll be able to access the Hyper Mode.

> Delete all your Fighters MEGAMiX save data, beat course A-H (but not "I") and place OK marks on 1200 moves in Training Mode. Now go to course "I" and press the L button. You'll enter a screen full of question marks. The object is to find the two matching pictures. Beat it once to get a picture of Janet. Beat it again to get a picture of Janet without armour. Beat it again....
(courtesy: Segaweb)

> Fight 500 rounds to add a "No" selection to the Options Plus menu.
(courtesy: Segaweb)