RedCard Soccer 2003 Codes -

Cheat mode:
Enter BIGTANK as a name to unlock all teams, stadiums, and finals mode.

Apes team and Victoria Falls stadium:
Defeat the Apes team in World Conquest mode.

Dolphins team and Nautilus stadium:
Defeat the Dolphins team in World Conquest mode.

Kraken team and Nagai stadium:
Conquer Finals mode, and defeat the Martian team and Kraken team.

Martians team and USAFB001 stadium:
Defeat the Martians team in World Conquest mode.

Matadors team and Coliseum stadium:
Defeat the Matadors team in World Conquest mode.

Ninjas team and Youhi Gardens stadium:
Defeat the Samurai team in World Conquest mode.

Penguins team and South Pole stadium:
Defeat the Penguins team in World Conquest mode.

Seals team and Aircraft Carrier stadium:
Defeat the Seals team in World Conquest mode.

SWAT team and Nova City stadium:
Defeat the SWAT team in World Conquest mode.

Tonatiuh, Xochicalco teams and Tepoztlan stadium:
Defeat the Tonatiuh, Xochicalco team in World Conquest mode.

Zombies team and Haunted Mansion stadium:
Defeat the Zombies team in World Conquest mode.

Finals mode:
Win all matches in World Conquest mode.