I just went on game center and checked out the leader board, their names arent their usernames in graal but if you know who they are, then there.
1.DukeIsPro
2.Anonymous
3.RecurveZ
4.Tusk
5.Trey Gunner
6.kennster123
7.frank2212
8.LAIndy
9.9thWonder*
10.XxNobleszaxX