A good concept for a game. Seems more like a arcade/mobile game, though. (Huh, i just found a button that says now on the app store.)
The graphics has an I Am An Insane Rogue A.I. feel to it.
The music isn't amazing, but it's not bad either.
Not really sequel-worthy, but i'd give a sequel a shot.
The right side of the screen gets cut off. Hopefully you can fix that.

TL;DR Good for mobile, not really sequel worthy, decent music, decent graphics.
Gameplay: 4/5
Music: 4/5
Graphics: 4/5
Replay value: 1/5
Overall: 3.25/5, rounded up to 3.5/5.

It doesn't really take a lot of effort to click 'n kill all the little monsters, its just the monsters coming at all different angles that's supposed to be the challenge, right? The graphics aren't bad, and the tunes are a little catchy.
Not a bad little game.

Music is a bit annoying, you should change it time to time. Monsters easily get stuck in jams, and Red Heads do not get destroyed, so they are much of cheat.