Nice game, however the base selection buttons need work big time, i nearly lost becaus if that in the third area, which is as high as i went and i did lose a base anyway. Trees were a problem but the enemy ground forces did have to go around them so i guess it is fair. It just means I should position turrents better. Also the wasd buttons to select play area were also buggy. Fix the buggy controls and at least in my opinion you may have something here.