I might have installed/played this wrong, but I was kind of confused about what was going on. This seems like it could be a decent galaga-style game, but there is no scoring system or level progression of any kind. I think that that definitely should be a feature in future updates. Also, you should be able to restart when you die and exit without using ctrl-alt delete.
I think if those issues were fixed, this would be pretty fun though!
P.S. It may be because I installed/ran this wrong. Please include installation instructions, and reply to this comment when you do.