If آپ want to know how to be Luigi I will tell you. First آپ finish the game than آپ go to to the پروفائل menu and آپ hold L and R as آپ open آپ پروفائل and آپ will see Luigi. If آپ save when آپ play as Luigi it won't work so آپ have keep on holding L and R everytime آپ want to be Luigi and to be Mario just do not hold L and R just do what آپ always do just go on. I hope this works for آپ because it works for me. THIS IS ONLY FOR NEW SUPER MARIO BROS AND NEW SUPER MARIO BROS 2 NOT ANY OTHER GAME.