I liked it, but I didnt at the same time..
I hated the graphics and the annoying aliens screeching noise.. they dont always sound that annoying, not to mention its the same thing over and over again. If you improved the graphics, I'd be much happier.
The story looked alright, and could be alot better with improved animations. The alien looked pretty bad to be honest, if you watch the movies, you can tell it was an alot skinnier body,and your characters were too square. Just improve these and I could easily rate your flash an instant 10/10 :)