Hi, I have played your demo. Here is my opinion:
The graphics are an eye catcher and I liked the story very much. The whole concept gives a quirky, lively impression. For this early stage of development not bad.
But the gameplay - so far - is to sloppy. Is there a possibility to reload my skills? I was unable to kill off the big pixs because I was soon out of ammo.
I would also put a description of the game objectives into the demo itself.