Not bad, not bad!
Pros:
The most gorgeous UI I've ever god-damn seen
Super sweet loading screen
Decently cool graphics for the player and enemies
Incredible detail to enemies and bosses were very unique looking
Simplistic gameplay that doesn't require a tutorial
Lots of room for additions
Didn't see any bugs!
Cons
Repetitive. Each wave was basically the same thing.
Don't like how weapon starts to bank downwards at about the half way point.
Kinda short but...there's not really a "standard" for length so it's fine.
Wish there was a level past the maximum cause there were a few powerups left
Overall, pretty damn good! you have a serious talent with graphics that I envy! I have my own game that's no where near the visual quality yours is! Hope to see more!