You nailed the theme, this was a clever and engaging puzzler. My eyes were flicking up and down like mad, an unusual sensation for playing a game. Really enjoyed it.
My only advice would be death is pretty frustrating, I guess because the levels can be kinda large and movement is relatively slow, maybe, so it's a rough setback. Or maybe because it's hard to notice what killed you? I guess that's the whole idea though. I'm not really sure why actually, but it might be worth thinking about.
Thanks for the game!