Pen and Ink Mode:
Go to the Player Edit screen, select Canada and enter MARC as your name (all caps). You can now play the game in pen and ink mode.

Remove Stadium:
Go to the Player Edit screen, select any team, then enter CATCH22 as your name (all caps). You can now play without a stadium, resulting in a much better frame rate.

Tiny Players:
Go to the Player Edit screen, select the Vancouver team and enter KERRY as your name (all caps). Your players will now be tiny.

Unlimited Player Points:
To get unlimited player points, enter the Player Edit screen, pick Vancouver as your team, and enter DAVE as your name (all caps).

Unlock Road to World Cup Round 2:
To get to Round 2 of the game, enter the Player Edit screen, select Japan as your country and enter the player name YUJI (all caps).

Upside Down Mode:
Here's another version of the upside down mode: Enter Player Edit, pick Vancouver as your team and enter the player's name as TED (all caps). The screen will now be flipped upside down, but the scores and names are left normal.

Ghost Players:
Go to the Player Edit screen, select the Slovakia team and enter LASKO as your name (all caps). Your players will now be ghosts.

Invisible Players:
Go to the Player Edit screen, select the Sheffield Wednesday team and enter WAYNE as your name (all caps). Your players will now be invisible.

Upside Down:
Go to Player Edit (under Customize Squad) and select Australia as your team. Then enter the name of the player as NWODEDISPU (all caps) and the screen will be played upside down.

End Sequences:
To check out some of the cool victory animations, go into the Player Edit mode, pick Japan as your country, and enter the name NORIE as the player name. Now go to the Round Select screen (RTWC) and press Z + C-Left + C-Up all at the same time.

Hot Potato Mode:
Go into the Player Edit menu, pick Ireland (R Ireland, UEFA) and enter the name SPUD for your player name (all caps). This cheat makes a timer appear, and when it counts down to zero, your players fall on their backsides.

Invisible Walls:
To play with invisible walls, enter the Player Edit menu, select Wales as your country and enter the name WARREN (all caps.)