I liked it
I think that the game was pretty fun. The gameplay was fast, and the lone-laser with multiple enemies things made it feel similar to Geometry wars. It was a little on the easy side, and I think that health should be purchased instead of dropped, to give players the difficult decision of upgrades vs. survival.
All in all, the variety of enemies kept me intrigued up to around the 15 minute mark. Very fun, I would like to see a sequel/update to this with more upgrade options and increased difficulty. Keep up the good work!