Hey Shiroi! Thank you for your feedback! I'm glad you liked it so far!
I'll definitely focus on adding more sounds and possibly music for the next demo!
One thing I’ve learned from the feedback and watching people play is that I need to create better level design and properly teach the mechanics to the player. So, I’ll be focusing on that as well! The last bone was indeed unobtainable! It was out of bounds due to a mistake, but that’s been fixed now.