Q&A for How to Get Luigi on Super Mario 64 DS

Go to the second floor of the mansion and go in the last door on the right.

Kill every Boo in the level. Then Big Boo should appear in the "main lobby". Ground pound him or hit him until he shrinks into a Power Star. The star is located on the second floor, so the hidden staircase (see above) should appear. Grab it and complete the level.

You have to punch 5 boos and defeat Big Boo to unlock a staircase for the second floor and a star.

Push x and use the dpad or circlepad to move the camera around. Push x again to go back to the normal camera.

Make sure you have got the red coin secret star in the courtyard. Once you've done that, go out of the game and back in again. Go back to the courtyard and go to the upper left in the the courtyard and the boo with the cage will appear.

Waluigi was not in Mario 64 DS.

No, it does not require any boos on the second floor. You need to get all the boos on the first floor first, though.

Once you have a few stars (eight, I think), the main hub of the castle will have a bright sunbeam. Stand where the beam hits the floor. Then, change the camera angle so that you are looking directly at the source of the sunbeam. Then, you will be transported the the red switch area. Fly down to the center and hit the red switch there.

Nothing, except the ? box is there, and a couple 1-ups. That is it. You can use the ? block as Mario to fly, like the wing cap in SM64 (original).

Once you have a few stars (14), the main hub of the castle will have a bright sunbeam. Stand where the beam hits the floor. Then, change the camera angle so that you are looking directly at the source of the sunbeam. Then, you will be transported the the red switch area. Fly down to the center and hit the red switch there.

No. In the original, Nintendo 64 version, the only playable character was Mario.

Once you are balloon Mario, float up a little to the left. There should be a platform. Land on this, and enter the door. Luigi’s painting should be a little to the right once you enter the room.

There is the Mario cap (red), Luigi cap (green), and the Wario cap (yellow). You can get the green and yellow caps by unlocking the respective character. For Wario, you need at least 31 stars.

You do not need any boos to unlock Luigi. The only boo you need is the king boo, which is always there.

You need to have 14 stars and play as Mario. Stand where the carpet is and press X. Look into the ceiling, and you will get the the area.

Once you have 8 stars as Yoshi, go into the character selection room. Go straight ahead, and you will go in the mini game room. Unlock the 8 star door and jump into the Mario painting. Cross the obstacles to what appears to be an X on the map. Jump into the hole. You will see a Goomboss. Eat his goombas and spit them back at him. Repeat this 3 times, and you will have unlocked Mario. Go back to the character select room, and go into the M door. Get a total of 15 stars, and do what this guide tells you to do.