How do you be luigi in NSMB2?

Answer 1

In New Super Mario Bros. 2, you can play as Luigi by either selecting him at the character selection screen if you're playing in multiplayer mode, or by using a special code in single-player mode. If you're playing solo, you can press the L and R buttons simultaneously at the title screen to switch to Luigi after you've started the game. Additionally, if you play co-op, the second player will automatically control Luigi.