Where do you put in cheat codes on new super Mario bros Wii?

Im Sorry. I Was Looking For Every Site For New Super Mario Bros Wii. Cheat Codes, But I Think They Really Dont Have Cheat Code What So Ever. Like I Wish They Made A Game Lot More Easier ....

Yes, yes there's codes. But I forgot the link, but look it up on youtube hellooooo... Youtube has a lot of stuff that helps.