Is it possible to play War of the fallen on 3GS?

I've been interested in playing War of the fallen, which is only available on iOS at the moment. So, I dug around and pulled out my old 3GS only find that the game isn't compatible? When I try to install it off iTunes I'm told the app requires a front facing camera......is it possible to still install it? I'm running jail broken 6.1.2. I searched some AppStore alternatives such as app cake and vshare with no luck.....