Super Mario 64 DS is a video game that was developed by Nintendo's internal Entertainment Analysis and Development division, and published by the Japanese company exclusively for its Nintendo DS handheld platform, as a remastered version of the original Super Mario 64 that appeared for the Nintendo 64 console back in the 1990s, and was launched on the market 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.
Seeing as how Super Mario 64 DS was just a remake of the original title, not a lot of changes are present, as players need to once again explore the 3D version of the Mushroom Kingdom, but certain improvements have been made to the graphics or gameplay, while extra playable characters from Nintendo's hugely popular Mario series have been added, including fan favorite Yoshi, and a cooperative mode through the DS' Wi-Fi Connection.
Eat a silver star
Then there should be a Goomba that has a silver star inside of him. When you see him, swallow him into a egg and it will look like you ate a silver star. Note: You can do this at any place as long there are enemies that have silver stars inside them.
In the mountain where the cannonballs are rolling, about a little more than half way through you will see a tunnel looking location. Go in it, stop walking, and press Y. You should go to the top tunnel.
Defeating Koopa The Quick
Mario, Luigi, and Yoshi can triple jump up to the bridge just past Chain Chomp. When racing Koopa the Quick, this can give you a big head start, and you can defeat Koopa The Quick very easily.