Guide in ArrayPrefs or PlayerPrefx?

PlayerPrefs, going too be the easiest solution, if your data being saved is going too simple text, and you feel 1 meg is sufficient room for stored levels and what not, I would suggest it, its down right simple. if your talking about capturing the entire state of the level, IE: object position, healths, items held, ect ect ect. then Its a huge task, and it would involve some serious programming mojo, if you do a search here for Saved Arrays, or Save game state, you'll find others seeking such things.