Hello!

Somehow the file I uploaded got corrupt, I'm not sure if it were that way because of my internet, or if the system corrupted it somehow (if so, that's not a good sign, if it was a disk damaged sector, my disk could be in trouble). Anyway, I uploaded new versions not only with this fix, but with some improvements to make this demo levels more balanced, as well as some lighting improvements to hopefully achieve a better game conveyance.

Give it a try... if you dare >:)