I had a fun time with this one. I played on stream and can share the link if you want to watch.
I like the art, even if it's simple, it was cohesive and I like the little touches you added to the guards' uniforms.
I think the spin could be at least 10 percent faster and I wish there was a more clear visual clue that I was in a spin attack. When I landed a spin and throw hit it felt really good, but it was difficult to pull off. Not because of the character controls, but because I think the guards come at you too fast for you to actually time it out, it's more luck with when they're coming for you and where your ball happens to be in the spin.
As a prototype, this was fun and shows a lot of potential.
I think a simple health bar that drains when guards are on you and and refills when you get them away from you would add some sense of urgency as a player.
Good job overall. I had fun as a prisoner ... I don't think anybody has ever said that before.