Doesn't work / poorly design – iDestroy Free: Game of bug Fire, Destroy pest before it age! Bring on insect war! Review

I can't figure out how to switch any weapons. Can't figure out how to use my home screen as the background. I can't find the settings (if there are any) to turn off the sounds effects / music. The app is poorly designed and not user friendly or intuitive and also seems to not function as advertised. Maybe it's because I'm using the free version? But I can't even figure out where to access the in-app purchases.
Review by JSalisbury on iDestroy Free: Game of bug Fire, Destroy pest before it age! Bring on insect war!.