Snoopy Tennis – Gameboy Color

Snoopy Tennis - Platform: Gameboy Color

Master code
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Enter FFWJ as a password to unlock all extras. 

Bonus characters
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Enter HGQM as a password to unlock Pig Pen, 
Peppermint Patty, and Woodstock.

Enter WHGX or ZVBM as a password to unlock Woodstock. 
Enter ZLNH as a password to unlock Woodstock and Pig Pen. 
Enter WWXR as a password to unlock all bonus characters.