DS System cheats and cheat codes for Nintendo DS

Birthday greeting
Set up your birthday in system settings
Go to a chat room in PictoChat on the date that you entered.
You will get a greeting message and you will hear a new starting sound also.

In-game reset
During gameplay, hold L + R + Start + Select to return to title screen.

GBA in-game reset
During gameplay, hold A + B + Start + Select to return to title screen.