Commander Keen
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 Continues | 91633DC9 |
| Infinite Lives | 916334C9 |
| Have All Keys | 91FF95C9 |
| Have All 3 Crystals | 91FF3AC9 91FF3BC9 |
| Max Score | 917F35C9 919636C9 919837C9 |
The image featured at the top of this post is ©The Legend of Heroes: Trails of Cold Steel III key art / Original