Rugrats: I Gotta Go Party Cheats
GBA | Submitted by GamesRadarTommy's Bedroom (& 8 Chances)
GBA | Submitted by FatboUnlock All Levels
Go to the password screen and type in LSXTTR.
Now go to Free Play mode and all games should be unlocked!
GBA | Submitted by GamesRadarLiving Room Unlock
With 1 chance: CBFBBG
With 2 chances: CBHBNG