Wayne Gretzky's 3D Hockey '98 Codes -

Constant fights:
Hold L and press C-Right, C-Left(2), C-Right, C-Down, C-Up(2), C-Down, C-Left, C-Right(2), C-Left, C-Right, C-Left at the options screen. A fight will break out at regular intervals during the current period.

Invisible players:
Pause the game during the opening face off and select the replay option. Press L or R to cause a player to flash. Press Z while the player is flashing to make him invisible. The entire team can be modified in this manner.

Extra teams:
Hold L and press [C-Right, C-Left(2)] three times at the options screen. The Minnesota, Quebec, Winnipeg and Hartford teams will now be accessible.

Lose game:
Pause the game and enter the options menu. Hold L and press C-Left(9). The seventh digit of the "Specials" option will change to the number "1" to confirm correct code entry. Resume game play. The score will change to "Them 1 - You 0" and the game clock will be set to "0:00". To activate this code without ending the game, use it immediately after a goal or at a face-off before the puck is dropped.

Opponent choice:
Enter the team select screen. Then choose an opposing team and press the C-Right(3). A click will confirm correct code entry. Select your team, and start game play.

View company sponsors:
Press Z in the options, setup, or audio menus. An advertisement will scroll across the lower part of the screen. A different ad appears each time Z is pressed.

View credits:
Turn on the game and tap A or B before pressing Start, until the credits appear.