I like that it had an entire plotline, very nice!
ironically I also managed to find the trigger near the end completely by accident on the first loop so was funny to see him react to the same thing twice, and was just as shocked both times lmao
As for feedback
I found the way the dialogue interrupts your movement constantly to be somewhat annyoing though it managed to be acceptable enough most of the time when there wasn't much dialogue
The main menu selection could also be a bit clearer so you know what you're selecting more consistently
as of right now I can't really think of anything else that particularly stood out to me as being that noteworthy other than some minor visual things maybe such as the teleporter laser beam just being cut off, the subtle slide when teleporting as well as awkwardly cut off tiles