I'd buy that for a dollar!
This game is hot. Well done.
The game is a top-down shooter, and movement is controlled separately from weapons fire, which is somewhat reminiscent of the arcade classic Smash TV. The physics are very glossy and smooth, and yield a wonderful gameplay experience.
In later levels, enemies are thick skinned, so it becomes necessary to charge your weapon to get kills. At the high end, managing your energy resources between your cannon and shields is a fine art.
One detail that I really enjoyed is that once your weapon is charged, the charge depletes over time, not by shots fired. This is huge, and awesome.
Please, move the shield key off of 'q'! It makes me sad having my mobility affected by reaching for the shields, so shileds need to be on a key that can be held down while 'wasd' is being used- 'shift' or 'ctrl' would be great, or you could even take over 'space'. (Who needs brakes, anyway?)
As for things to add- in that limbo when you have just died and are waiting to be reborn (so you can get shot at more times yay), I would like to have a little mini-game appear wherein you can repeatedly punch a baby seal or something. I don't know, I just wanna punch something.
The laser is really cool, but I feel like there should be weapon upgrades or special weapons or something. Big explodey weapons. Put the shield key on 'space', and 'q' can set off the bombs :D
Energy is replenished by making kills, but it's hard to make kills without energy... Maybe make energy slowly regenerate over time to provide another way out of energy debt?
It would be cool if shields reflected shots. What if you could bounce incoming shots by timing your shield just right?
I'm only giving suggestions because I'm excited to see what you'll do next. I commend you! Excellent work!
I'm off to get beat up by hard mode a few more times...