View version date
Press C-Left immediately after powering on the system. The sound of laughter will confirm correct code entry. The date on the title screen indicates when the game was completed. Note: C-Left may have to be pressed a few times.
Alternate view
Hold Left and press Start during game play. Hold Down and press Start to return to the default view.
Taunt opponent
Press C-Left + C-Right during a match.
Dirty fighting
Pause game play during a match, and disable shields. Resume game play and hold A while attacking.