Super Mario 64 DS 151 Stars + Extra

You must need an Action Replay for DS, or DSi, and or 3DS. The first one is how to get 151 Star. This is a hidden Star that Toad gives you using the replacement Code. Start the game, then talk to Toad. He will give you the secret Star then save the game and quit. The second part is an easter egg using the Chief Chilly map Code. Start the game, make dure that Code is not on. Use Yoshi save and quit. The put the Code on and you will see a secret message from Chief Chilly to Yoshi. Once you beat the Boss and gotten the key, it will freeze. Here are the codes
Use One only

Toad's Secret Star
1210443A. 000000B9

Chief Chilly Map

020988A4. 00000031