Input the classic Konami Code: Up, Up, Down, Down, Left, Right, Left, Right, B, A during the title screen to unlock all of the Cool Stuff without having to beat the game with everyone.

but the most recent console Simpsons title was The Simpsons Game, which was released in 2007 for the Xbox 360, PlayStation 3, Wii, DS, PlayStation 2, and PSP.