First go to Big Boo's haunt. In the mansion, triple jump up to the second floor.
Go in the far right door. Get the power flower. Bounce up to the 3rd platform.
Go in the door and jump into the Luigi painting. It's a puzzle. The way to answer it
is on the map. The yellow lines are doors. For the first one go in the right door on the map. (don't turn the camera). Then go in the top door of the map. Then the right door
again. Then the top door again. Cross the bridge and jump onto the first green platform.
Then jump on the second one. Then jump onto the third. It will bring you up to the top.
Jump into the hole. To beat the Boss, go behind it and punch. Repeat the process until
the Boss gives you a key. That is Luigi's key. That is how you save Luigi in Mario 64.
its in boos mansion go in the ROOM with the ? block with Mario then float up to the next room and the painting will be in there to rescue luigi
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 go into the mirror room as luigi then get the flower so you are invisible.Walk into the mirror then the picture of luigi on the other side would be wario inside.Jump into that and beat the boss.
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