Does it have to be game over if one alien gets by? It would be better if after five aliens you die because then you don't have to have a perfect run.

Why do I have to click the screen at all? It's annoying having to take my hand off the keyboard repeatedly.

The music is okay. Could be a bit louder though.

The slow firing speed was kinda frustrating, especially when deal with the purple aliens.

Graphics are good.

I just don't understand why I have to use my mouse at all in this game. Peace.