I really appreciate you having taken the time to both play and record a video. It was really insightful. I like the idea of adding bonuses for clearing an entire room. I think if the earlier bosses holding the keys would also make it more interesting.
Yeah adding walls would have been a good thing I didn't think of :/.
I was trying to think of ways to make the boss chase you but I wasn't sure what could have made sense, but def something I need to brainstorm more on.
Lot's of UX issues and of course not much juice was added (which is even more painfully obvious after watching the video).
Either way, thanks!