Secret screen
Hold (C-Up), (C-Down), (C-Left), or (C-Right) and turn on the Nintendo 64.
Dirty fighting
Pause game play during a match, and disable shields. Resume game play and hold (A) while attacking. Your character should be able to do a significant amount of damage without being hit too frequently.
Taunt opponent
Press (C-Left) + (C-Right) during a match.
Alternate view
Hold [Left] and press (Start) during game play to switch to a first person view. Hold [Down] and press (Start) to return to the default view.
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.