New Super Mario Bros cheats

I do know a little bit....

To be Luigi, on the menu, press A with L and R.

To get in world 4, beat the boss with mini Mario in world 2

To get in world 7, beat the boss with mini Mario in world 5

You can save anywhere after you beat the game.

From William and Matthew BFF. Hey i know another one once u beat the game and got all the back grounds pause the game enter LRLRXXYY your welcom timothy hellped