The game plays in a *beautiful* moon base environment. Just gorgeous, with great models and terrain. The only thing I'd suggest changing is adding footsteps from the base to the platform, because otherwise how did we get here?
I was confused as to what to do with the guns, but eventually figured we are to shoot the asteroids. Perhaps a prompt on the console could be useful.
The gameplay felt a bit repetitive: although the asteroids don't all go at the same speed, they all go in the same direction and there is no strategy, no different levels: just see how quickly you can press the triggers to destroy as many asteroids as possible. The game gives you a score which is nice, so you want to play again to see if you can improve the score.
In terms of nitpitcks/details, I liked that I was able to grab the right gun with the left hand (or vice versa), and it's cool how the gun model animates when we shoot. There's no need to reload but I think this is fine for this kind of game. However perhaps the bullets could be more visible, and it would be nice to have a bit more of an explosion when we hit and break the asteroids.
Overall, the game is very pretty and with added depth and variety this could be a great game!