Klax
Furd Herder mini-game
Enter Green Alien, Green Alien, Square, Green Alien as a password to unlock a Minesweeper-like mini-game.
Snake mini-game
Enter Circle, Diamond, Square, Green Alien as a password.
View Klax history
Enter Yellow Alien, Pillar, Pillar, Green Alien as a password.
View Klax myth
Enter Square, Pillar, Diamond, Green Alien as a password.
View programmers
Enter Green Alien, Green Alien, Circle, Square as a password.
View credits
Enter Pillar, Yellow Alien, Diamond, Diamond as a password.
Adventure mode (European version)
Enter Square, Yellow Alien, Green Alien, Yellow Alien as a password.
Level passwords
| Password | |
| Yellow Alien, Pillar, Pillar, Circle | |
| Circle, Yellow Alien, Square, Yellow Alien | |
| Yellow Alien, Yellow Alien, Square, Green Alien | |
| Diamond, Yellow Alien, Green Alien, Diamond | |
| Diamond, Square, Diamond, Green Alien | |
| Pillar, Yellow Alien, Square, Pillar | |
| Green Alien, Circle, Pillar, Pillar | |
| Circle, Circle, Yellow Alien, Yellow Alien | |
| Pillar, Diamond, Diamond, Circle | |
| Yellow Alien, Diamond, Circle, Pillar | |
| Square, Diamond, Yellow Alien, Square | |
| Pillar, Square, Square, Yellow Alien | |
| Circle, Square, Circle, Green Alien | |
| Circle, Diamond, Diamond, Green Alien | |
| Circle, Square, Square, Pillar | |
| Green Alien, Green Alien, Yellow Alien, Circle | |
| Pillar, Circle, Circle, Pillar | |
| Square, Green Alien, Diamond, Circle | |
| Yellow Alien, Green Alien, Circle, Diamond | |
| Pillar, Pillar, Green Alien, Square |
Note: You must have a 2.1 or higher version of the Game Shark to use these codes in a Game Boy Color system.
| Infinite Misses/Lives | 0100B6C2 |
The image featured at the top of this post is ©The Legend of Heroes: Trails of Cold Steel III key art.