I lost two of my guns pretty early on, but then started cruising with the rocket launcher level 2 and 3. I agree the collision detection didn't seem very intuitive, but could just be a polish thing (also, just use the rocket launcher, as the AOE feels pretty spot-on). I also thought it was cool that you had some of the missiles hidden in a smoke cloud. It offered some variety. If you expand on the game, expand on that too (different flight patterns, other complications). I had fun playing this one for sure.