Board Thread:Game Discussions/@comment-24196444-20140120045003/@comment-24317058-20140123230120

A rollback can set your account back in the state it was (for example.) 8 hours ago. I think gree only does this when you have been exploiting a bug, hacking the game or something which you shouldn't do. Going 8 hours back in time, deletes all the things you got from the exploit.

I think this is the way how Gree uses rollbacks, but it comes down to the same