Honestly this looks kind of bland, and the design is uncreative. I've seen at least half a dozen of these 'polygon shooters' before, most of them I can play for free on the internet as well, because they're just flash games. Most of them at least keep a good reason for the design choice as well, usually tacking on a story about some computer-based thing the game is centered around, or because the game is just really, really simple. Honestly this is just lazy design from my perspective, since you're putting money and time into it.
Honestly the gameplay doesn't look like it'd make up for it, either. I played Geometry Wars, which is almost the same concept and design, but it was executed really well, really fast-paced, really nice take on such a simple design. Yes, that's a commercial game, but it didn't start out as one, it was just a mini-game for a racing game before it got expanded. The gameplay in that feels really smooth, and isn't clunked up with gimmicks like power bars. The enemies didn't have huge lifebars either but just came at you unceasingly, which really made the game feel a lot more fast-paced and exciting.
Really, I looked into your profile on Kickstarter and I didn't find anything. Google turns up nothing either. Have you even done any other games before begging on Kickstarter?
I remember a time before the whole indie boom where I could just play decent games made in Flash or Java or what-have-you for free on the internet, and many of them were just as fun as good retail games (although they never were terribly long most of the time). Is this really the fate of gaming where every two-bit game dev just begs for money to release flash games?
This is a pretty harsh post but watching amateur game devs beg on Kickstarter just annoys me, especially with half-hearted ideas. I'd consider supporting a dev that at least has a lot of good games under their belt, even decent flash games I could play on the internet. Good game devs like
Nerdook who make lots of really fun flash games I really enjoyed. Now he has a game he's selling on Steam that I would totally buy just because I enjoyed his other games (even if I didn't like the one he has on Steam as much), and he's worth it because his games are great and he's not begging for cash.
EDIT: I forgot that Nerdook actually probably makes a lot of ad revenue and also probably donations for his games on Kongregate, but it drives the point home that he's successful because his games are good and it's not because he's actively selling them for cash, instead he's throwing his games out where they're free and hoping people will like and play them, like everyone else.