You can either start a new game in an empty Save Slot (as there is two) or you can press A on one of them and select Erase. This will allow you to start a new game in that slot.
marios inside story is a piece of crap
You turn on your DS and tap "Mario and Luigi Bowser's Inside Story". Tap the file you want to play and play the game. Hope I helped!
Press start, hit save, and and wait
Luigi is already unlockable when you start the game.
New Super Mario Bros.- You hold L and R. While holding, press Start. Mario should transform into Luigi.
You can't. You can only be Mario unless you hack the game, which is not reccomended. If you are playing the DS remake, you can put Luigi's hat on and become Luigi.
Mario Luigi and princess peach are celebrating princess peachs birthday then a giant cake comes in which ends up having all the koopalings and bowser jr inside who then kidnap the princess and take her away on a giant airship then Mario luigi and some toads start running after her. THE END
Use your strongest special as many times as possible while dodging and blocking their attacks. If you start to get hurt, eat mushrooms to heal. If you go low on SP, then use whatever item you have that restores SP.
Press the start button.
You start off with Mario,Luigi,Peach,Yoshi,Toad,Wario and Bowser. You can unlock Dry Bones, Daisy, Waluigi, Baby Mario, Baby Luigi, Baby Peach and R.O.B the robot
Look, making you start over is just a easy way to end a video game. In the other to games in the series, it does the same.
If you r talking about new super Mario u beat the game and do code and press start