The lack of animation in the characters is my fault, I just wasn't fast enough to finish all the pixelling in time for Halloween, but it will be fixed by the time the full game comes out (probably in a few months time).
We'll fix the head-bouncing thing with the kids too, so they'll just cross past each other rather than bouncing off their heads.
The full game will have more, harder enemies, and different weapons.
And due to the limitations of Backbone, there's not much we can do about the scrolling except reduce the screen size so it runs faster on slower Amigas, so when the full game comes out we will have a few different releases for slower and faster Amigas.
I've never seen Cotton 100% before, I'd like to check it out though. Which system is it for?
I'm uploading the demo to the Zone now.