This game is hard! I felt very constrained by the size of my drone versus the roads I was flying over. I believe in the original River Raid there was a bit more breathing room. Shots taking energy is a neat concept, but I would say that enemies shouldn't take 3 shots to go down, maybe 2, but preferably 1. That all being said, the procedural generation is done nicely, and I do like the neatness of the buildings (makes it so they don't draw my eyes away from combat). Gameplay is a tad too slow, but a quick camera change and variable increase, along with smaller size of plane, would fix that right up!