12 Mar 2004, ID#1484 Special Modes and Unlocks
New Year's Day mode:
Set the system date to January 1 to unlock Krusty in a tuxedo.
Set the system date to the third Thursday in November to unlock Marge in a pilgrim dress.
Set the system date to December 25 to unlock Apu in a Santa costume.
Set the system date to October 31 to unlock Bart in a Frankenstein costume.
Car built for Homer:
Complete all ten levels in mission mode to unlock the car built for Homer.