CheatCodes.com has all the official Rugrats: Castle Capers GBA cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Wednesday June 19, 2013 for Rugrats: Castle Capers are shown below.
Enter "RNKCJJWBNKGL" as a password.
Type in CSPLLQWPTWYJ as an password to have every level beat execpt for Snow Problem and Sure Would Forest.
Enter "JSJRJKSLXCFJ" as a password.
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