App won't even load wasted 1.99 – Orange Alert Review

Got this for my son. He was so excited as one of his teachers at school have this app. So upset though as all it does it stay on the hoods math screen and never proceeds to the game. We have a brand new iPod 5th gen. Please fix and advise on how we can get this to work. He used his Christmas money to buy this. Now I have one very sad kid
Review by sick of being stuck on update on Orange Alert.