2 questions

[Linkinator]

Are there cheats for mupen64?
And plus, I've downloaded OoT and it does NOT work!
Any help?

[Iconoclast]

Mupen64 does not support cheats.

It probably doesn't work because of your graphics card. What error message(s) do you get when you try to start the game using Mupen64?

You're probably better off using Project64 here, though, 1964 if you can change plugins around a little.

[Linkinator]

Oh, I can't use PJ64, 'cuz O have a mac, and do ANY of the mac emus have cheats?
And I don't get any error messages, just nothing at all happens, and the only file I can find for it is the .7z

[Iconoclast]

I don't have a Mac, so I wouldn't know. Sorry.

[Tillmann]

Try styforce64 :)
A friend of mine said that it's a good emulator (it would not be a problem to run zeldaOoT)

About the cheats: sorry :(