This game is also available on Xbox.
Retro Game Cheats for RedCard Soccer 2003 (Gamecube)
Effect: SWAT team and Nova City stadium
Effect: Kraken team and Nagai stadium
When:
During the game
How:
Conquer Finals mode, and defeat the Martian team and Kraken team.
Submitted By:
Effect: Unlocks all teams, stadiums, and finals mode
Effect: Dolphins team and Nautilus stadium
Effect: Matadors team and Coliseum stadium
Effect: Ninjas team and Youhi Gardens stadium
Effect: Seals team and Aircraft Carrier stadium
Effect: Apes team and Victoria Falls stadium
Effect: Martians team and USAFB001 stadium
Effect: Penguins team and South Pole stadium