This was a very interesting game, and although you mention E3 distracting you, I can tell you put a lot of work into this!
I ran into a problem with the dialog, the second passages would only appear for roughly a second before disappearing.
Also, it would be nice to be able to shoot in whatever direction I'm facing, instead of having to hold down the arrow keys to shoot in a direction other than down.
Nice idea, interesting story, and cute art. Overall, well done :)