I finished the game. First things first, it's fun to play, good job!
My personal feedback:
- I didn't figure out how to aim. It was seemingly random? I think it would be a lot more fun the skull flies towards the cursor when I hit it
- Skull shouldn't be moveable with the body. Not sure if that was encouraged or not, but I found myself pushing it a lot instead of hitting it
- It took me a while to understand how the spikes work. They are not really intuitive because that's not how players expect them to work (damage/die), so maybe another kind of art or an explanation would've worked
I did like the art style and the diversity of maps tho!