Since it's an early unfinished version of a game, there's not much to comment, but at least I can say that mechanics work pretty well. Enemies and projectiles move way faster than the player, but fortunately there's the dodge button to avoid them. My only point of critic is the background song, definitely too slow-paced for a shooting game (on the other hand, it would be a great piece of music for e.g. a point'n'click adventure).
Not bad, but no objective, upgrades, or anything. Could use some work.