Could be so much more
I have to agree with other posters;
This game looks superb, it has fluid gameplay, all the technical aspects work out well.
But the actual gameplay is lacking.
First off, there is balance; A pulse Rifle with FMJ is really all you need.
A bit more differentiation would be nice, range, ammo, damage, spread, strengths versus enemy-types... that stuff.
The level design often gets you stuck on stuff you really don't recognize as an obstacle.
Still, I spent over an hour on it, and it was mildly entertaining, so I expect thew second installment to improve.