Music tracks are strange and awesome at the same time. I like that. Graphics and mood are nice, blocks with white corner are unique. Player controller is strange, it isn't moving smoothly. I think you should rework it. Teleport mechanic is a nonsense. I used it like one or two times. Rest of the game is beatable without it. While you tried to make level as less repetitive as possible, I think that wasn't accomplished. There are few sections where are a lot of 1x1 blocks placed dense so there is no way to fall there.
Although I like music here, I don't like how they change harshly when you reach another level section. You should definitely research about easing function and use them to your advantage. I don't like restarting track when you lose. Music should play with no interruptions when you die. That feels odd.
To sum up, I enjoyed playing game. While controls are bad, teleport is unnecessairly and music strangely restarts every time you die, I enjoyed exploring levels.