Super impressed that you basically designed the same level twice. I thought it might be hard to tell what I was supposed to do, because there's no obvious indicator as to what was in the past and what is in the present. But it was always pretty obvious based on the context and I usually guessed correctly how the bubble would change the environment. So great job communicating the intended path while also not being too obvious about it.
I did have an unlucky moment where I turned on the bubble and immediately died because I happened to be standing in the same space as a shadow person, and I couldn't see it until it was too late. That's a tricky design problem to solve I suppose. But anyway it didn't sting too much because I knew about the shortcut already. Very clever design on the shortcut, since you can only use it once you go the normal path once. Next time I went to that area with the shadow people, I made sure to use the bubble quickly. That was scary because I caught a glimpse of them standing very close to me but luckily I turned off the bubble before they could even move. lol
The characters and architecture make me very curious about the world. I want to see more of it!