Enter "ZVBM" as a password to unlock Woodstock.
Enter "ZLNH" as a password to unlock Woodstock and Pig Pen.
Enter "HGQM" as a password to unlock Woodstock, Pig Pen, and Marcie.
Note: You must have a 2.1 or higher version of the Game Shark to use these codes in a Game Boy Color system.
|P1 Score 0||910026C3|
|P1 Max Score||910926C3|
|P2 Score 0||910029C3|
|P2 Max Score||910929C3|
|Unlock All Characters||910BCAC4|
|Unlock All Levels||9100B9C4|