The game starts off amazing. It’s smooth with a clean look, and begins as an engaging experience.
Over time, the broken elements are more visible.
Leveling doesn’t feel like leveling since the enemies progress as fast or faster than the player.
Aiming is broken, even leveled. Locks or doesn’t lock at a whim.
Enemies seem to have 360 targeting all the time.
Simple to learn for gamers, but it needs a tutorial for casual players.
Monotonous survival mode. Needs more.
Needs sound, desperately.
All that said, you really have something here. Keep working on it. Stay ad free! Think about micro-transactions for new plane paint jobs, missile trails, etc.