Super Mario 64 DS is a Nintendo DS exclusive video game, developed by the company's Entertainment Analysis and Development division, and published by Nintendo itself on November 21, 2004, in North America, December 2, that same year, in Japan, on February 24, 2005, in Australia, and on March 11, 2005, in Europe, as a new and improved version of its classic Nintendo 64 title Super Mario 64.
The original title became an instant hit back in the 1990s, so the developer hasn't tried to implement that many changes to its core gameplay, but did improve on the graphics, in order to take advantage of the more powerful DS, while adding new characters, like Yoshi or Wario, and special areas to the game's virtual world.
HINTS
Getting Luigi
Go to the courtyard with the fountain and the ghosts. Look for one ghost that’s larger than the others. Use Mario to stomp him. Enter the small object that it drops to reach Boo's mansion. Get the first Star. On the second one, go up to the second floor. Continue on to defeat Big Boo and get Luigi's key.
Getting Mario
To rescue Mario, you need at least 8 Stars. Go into the castle version of the rec room, where Toad is worried about losing Peach's rec room keys. Open the 8 Star door. Go forward, jump across the platforms, climb the pole, and reach the top of the huge tree. Jump down the hole on top of it. To defeat the following Boss, Goomboss as Yoshi, just run behind him, swallow a minion, and throw it back at him. After each hit, he will grow and redden. After three hits, he will be defeated and you will get the key to Mario's room. Then, just unlock the door and go inside.
Get the Mario Wings without using Mario
Go to versus mode. Go to either Shining Isle's or Battle. Hit a "!" box and you will get the wings as anyone.