Loved the video! Thanks for the review.
About action scenes - those were not planned as fighting scenes, but more hide&seek stuff. I agree that the game feels good as it is now, but originally I thought that feeling of getting to the freedom should be stronger if there would be kind of "boss-battle" challenge before the exit. Not like a literal boss-battle, but something challenging enough with a confrontation to a certain subject.
But the poor guy got the fate of smashing his head against the wall instead.
Btw, the idea of someone getting to the back of Prisoner while you are flying around the closed gate is really, really good, even though it sounds kind of obvious. Haven't thought about that!