luiginumberone

Best answer as chosen by Asker / Ratings
Okay...start the Emulator, and put it on the main screen (to select a ROM). Go up to the top menu bar and click "Options," then "Settings..." From there, click the "Options" tab, then uncheck "Hide Advanced Settings." Click "OK."

From the ROM list, right click on your Super Mario 64 game, then click "Edit Cheats." Right-click somewhere and click "Add New Cheat..." Type in a name, and fill in the code box, then click "Add Cheat." Check the box beside the new cheat, and then start up the game.

In addition, I now have shorter codes, but for specific save slots.

For slot A:
80207723 0001
8020770B 00C7
50001101 0000
8020770C 00FF

For slot B:
80207793 0001
8020777B 00C7
50001101 0000
8020777C 00FF

For slot C:
80207803 0001
802077EB 00C7
50001101 0000
802077EC 00FF

For slot D:
80207873 0001
8020785B 00C7
50001101 0000
8020785C 00FF

However, as far as I know, those won't unlock the doors in the castle, you need seperate codes for those...

For slot A: 8020770A 007E
For slot B: 8020777A 007E
For slot C: 802077EA 007E
For slot D: 8020785A 007E

Make sure you turn off the code before saving your game. To do this, while playing go up to the top menu bar and click "System" then "Cheats..." From there, uncheck the 120 stars code, then resume play and save.