Hello everyone, I have never had a smartphone or tablet before the nexus 7 and so far am loving it but am unfamiliar with the intricacies of the system.

I downloaded an app for my girlfriend, brave temple run, and we were having a blast playing it and then be being the genius I am saw that it was using battery when it was inactive so I force stopped it. Since then I have not been able to play it without an internet connection, whereas before I could. I have turned it off/on charged it and whatnot and generally am lost on how it is not longer available offline. Any tips?