Could Be Better
It's just boring. There's no onscreen indicator of your health or whatever it is that finally dictates your health, and enemies just swerve into walls to die by your hand.
Some onscreen health or indicator of progress would be amazing, as would, possibly, the right ship being controlled via arrow keys? The mouse was tolerable but required far more focus, causing enemies to be a bit more successful on the left side, and once the screen splitter vanished, a ncie touch admittedly, the mouse became a chore in trying to keep the pointer over the game, something that is a curse of Flash and never something I've much liked in the games made with said.
There's potential here, but as is it seems more like a tease of something better you're working on than an all-out effort.