Sorry I'm so late on this, haven't been checking this section.
I liked the options screen, I always like to be able to adjust sound.
Game play was functional, albeit a bit slow for my tastes. The enemy didn't seem to fight back much (I had no trouble avoiding their shots). I didn't use the charged shot as it didn't seem to ever fire (perhaps I didn't wait long enough). The first time through I didn't even know about the charged shot and just eliminated enemies as they appeared with little to no difficulty. The regular firing laser felt sluggish and difficult to control timing.
As Gerbil stated, enemy variety/difficulty would enhance game-play. I think weapon variety would also help. I was hoping for power-ups or something but didn't get any reward other than a higher score. Also, incremental play would be helpful for a sense of accomplishment. Like a countdown of the enemies needed to be destroyed before moving to the next level/stage. So rather than saying I go to some score I could say I made it to stage 7.
As far as artwork goes, the background works and I enjoyed the explosion effects. I think the player and enemy ships need a little more beautification. Enhancing the weapon effects could help as well. Shrapnel from the destroyed ships could be a bonus.
All in all, not a bad start. I'm trying to provide constructive criticism and not just be all negative. I think with a couple improvements it could be a decent game.