Thanks for letting me know! I fixed those mistakes right now.
I don't know about how the boss left the arena though, I'll see in the future if it happens after this fix. C:
Viewing post in Arthisio - The Vanishing Point [Prototype] comments
the “even here?” Dialogue triggers even if you’ve already triggered it. He takes a step away, it rotates, then he takes damage and steps away again. Also I like the glowing blue circles to indicate rotated panels they are very helpful.
Also when rotating there is a wire panel that appears for the animation that you removed.