For a demo, Skul has a lot of nice things going for it. The art is really pretty, with some interesting character designs going on and smooth animations. The music is well made, and I find the intro theme especially beautiful. I also enjoy how the head mechanic works and appreciate some abilities having a delay, so the player can't just spam the "best moves." Overall, this is a good foundation, and I wish you luck finishing it.Good job, devs.