There is no way to get the keys. The idea is that in your game you know what key-value pairs you write to the PlayerPreferences, so you know the keys. Think of this as exactly like the words in the Oxford English Dictionary. There is no list of words, it's assumed if you want to know what a word means you'll look it up.
Assuming you know the keys, then to get the values, you just call PlayerPrefs.GetString for each one.
answered Apr 05 '12 at 03:46 PM
Graham Dunnett ♦♦