I thought this was a simple Pac-Man clone at first, but it's much better than that. The looping shadows shift the focus from survival to exploration. It's okay if you die- just take a new path. I especially love how the clones contribute to the player's vision, allowing the player to more efficiently dodge enemies each time they die. That dynamic difficulty curve keeps the game accessible for everyone.
The only criticism I have is that it was difficult to read the dialogue while playing. I got the gist of the story and loop, but there were certainly lines that I missed.