Alright, so here's what I think.
The game is good, but it has a bunch of really annoying features.
For instance: when smacking anything, even slightly, makes you spin out, that's a pain in the ass. I didn't invest in armor until I had everything else up to full because it wasn't worth it until I was nearly in space. Having some ability to break through the object, or just less spin-out physics would make this game much more enjoyable.
The upgrades are nice, but again, when it's nearly impossible to get very high because you're spinning out all the time it's a little annoying.
There's a very odd blank area, after you hit space but before the meteorites appear, where almost nothing exists. I coasted for two or three checkpoints before seeing something. And, by the time you hit space the difficulty level drops by a huge amount. The first time I hit space I got to the moon. It was getting past all the damned planes and blimps that was the hard part.
And, for the love of Odin, get rid of that annoying beeping noise. Whenever I'm hurt or low on fuel that noise made me want to just shut the damned tab. I'm all for audible warnings, but I actively crashed whenever that noise came on, just to get rid of it.
Another thing is, because space is so easy, it'd be cool to be allowed to go farther than the Moon. I used barely 1/10th of my fuel to hit the moon, and that was without grabbing fuel power-ups, so it would be cool to be able to go further.
So, in all, the game was nice, but could use some touch ups.