Concept is nice and well exploited with the different kinds of walls. Too bad there are no more levels to really exploit those mechanics. I think the hitboxes could be more polished as it’s not always clear that we can’t move in some places, and some feedback when you can’t teleport would make it clearer. Also, feedback when you actually teleport would make it feel more finished.
Overall, fun! Would have liked to see more of it ;)