Very fun. the only single complain i have is that the hit boxes should be worked on.
It works, it's pretty interesting, but I wanna see more, something to mix it up a little and a few more levels to fully explore the possibilities. I'd suggest doing something with the fact that doors can block a time traveling block from returning to it's original position
This game was really fun and I would love a longer like story version of it. Very well done.