Pretty cool game. Polish is great and controls feel really nice. The 'bad' 3d models lend to the charm, too. I got a little frustrated when powerups would spawn right on you and you'd lose everything. Or do powerups time out after a bit? Either way, i'd suddenly be powered down after actively avoiding powerups.
Also really wish machine gun and shotgun powerups stacked!
Great job on this. Feels great, looks great, plays great. :)