I don't know if this has been posted but there is a bug where if the demon king transforms while holding you, you get stuck trying to break free while they are allowed to attack.

I have posted this issue last month and it seemed like the developer noticed it, so it may get patched in the next version. Since we are already on this fight, I think it's a good opportunity to post another bug I found. Looks like she can get stuck in a position as well, I have no idea how she got there though.