Super Mario 64 DS Unlockable: Luigi
After unlocking the red ! boxes, go to the castle courtyard. Punch the giant boo with the cage inside of him to enter Big Boo's Haunt. Obtain the first star by defeating all the Boos to get the staircase. In the second goal, as Mario, go up the stars and into the room with the single bookshelf. Use the fire flower to float up to the room above, where you'll find a Luigi painting. Jump through the painting and defeat Big Boo to get Luigi's key.
Super Mario 64 DS Unlockable: Luigi
After unlocking the red ! boxes, go to the castle courtyard. Punch the giant boo with the cage inside of him to enter Big Boo's Haunt. Obtain the first star by defeating all the Boos to get the staircase. In the second goal, as Mario, go up the stairs and into the room with the single bookshelf. Use the fire flower to float up to the room above, where you'll find a Luigi painting. Jump through the painting and defeat Big Boo to get Luigi's key.
Hope this helped
You can not unlock Luigi in super Mario 64 without hacks, but he is playable in super Mario 64 DS
Link is not a character in Super Mario 64 DS. The available characters are Yoshi, Mario, Luigi, and Wario.
Yoshi, Mario, Luigi, and Wario
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Mario, Yoshi, Luigi, and Wario
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Luigi is not in super Mario 64 on the Nintendo 64, that was a rumor. However, on the ds version you can play as him along with Wario and Yoshi.
you can unlock luigi detective.
It isn't possible to get Waluigi in Super Mario 64 DS. Only Mario, Luigi, Wario, and Yoshi are playable characters.
on top of the castle
You need luigi
Because there was no room in the game for him so Mario fired him..