The Grinch Level passwords
| Password | |
| 97[Plus]2428[Minus]3 | |
| 48[Minus]4[Max] [Grinch] [Max]X2 | |
| 37[Minus]262CindyLouWhoX3 | |
| 4X02[Plus]74[Plus]8 | |
| [Max]4606[Plus]8[CindyLouWho]9 | |
| 08[Minus] [CindyLouWho]1[Grinch]8X4 | |
| [Minus]X0[Grinch] [Plus]7170 | |
| 74206[Plus] [Plus]XX |
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 Snowballs | 01058DC0 |
| Have All Presents Collected | 01008BC0 |
| Have Red Key | 01018EC0 |
| Have Yellow Key | 01018FC0 |
| Have Blue Key | 010190C0 |
| Have Gold Key | 010191C0 |