A pretty cool puzzle game, it didn't take long to figure out how it worked and it worked pretty nicely. Maybe it could have used some basic background music. The only other suggestion I have is that the window was tiny!

Had an error on start:

Very interesting logic concept. I had fun with it when I could figure out the puzzles. I don't know if it was me or if there was something off about level 3. It seemed to not follow the moves I was performing. Maybe it was me, although I tried it enough times that I think it was the game, lol. Nice work on this one!

Wow man! how many levels did you do? I am playing like for 15 minutes and havent finished yet. Anyway, great game!

Yo’ Templar here,
Cool puzzle game, the rewind mechanics of the movement lends itself for some interesting puzzles if you ever expand upon this, the art is a bit too simplistic to my liking and the window size is tiny which makes reading a tad bit difficult, there also should be a better explanation early on about the controls and movement.

Really nice implementation of the concept. I think the only thing that would've been nice to explain better is that your moves are reverse. If you plan to expand this further, it would be really cool to have a move log and when you enter the the reverse portals it flips the arrows on the move log.