It's a good game, no doubt but there are a few things i feel i should touch upon.
Number 1, the game is very repetitive, i know that its a space shooter so what was i expecting but the fact that it is the same thing over and over is boring and it gets very repetitive fast, its the same enemies with a new texture and sound, there's no variety in enemy placement its just shoot anything that comes close to you, which is ok, for the first two minutes!
Number 2, weapons, once again, its the same thing with a different texture and sound, something like a bomb to wipe all enemies on the screen would be a great feature in a game like this or maybe a new type of weapon that does lasting damage.
Number 3, boss fights, a boss fight should be a major part of a game not a free for all, all that happens is its a rush of enemies all at the same time, apart from the ending of course, which is a little disappointing, i was expecting something like a mini boss, not an onslaught!
Number 4, options, this is nit picking but i have to put it out there, there isn't many options, in fact non that would help the player anyway, the option to turn the sound off and the music off is fine but a volume control would be nice for those of us who like to balance both FX and music, also, quality, specifically graphics quality, unlike some my computer can only handle so much, so being able to lower the graphics so the game doesn't suck the life out of your computer is a must for a gravity/ physics game like this.
Apart from the 4 points this game is good, it could be great, maybe not awesome because it fades in with all the other games like this, it needs more variety.
(PS
Also, this game looks like it was made with Stencyl, just sayin' is all)