Finally made it. Not sure I visited all places though. I almost gave up after trying three times to get the first keycard and not being able to go back due to not having jump ability yet. Read the post here and figured I had the same issue and got past that section.
It was a fun experience and not that tedious. At a first glance the level looks a bit intimidating. It looks like it will take an hour to complete. But the gameplay is nice and the abilities work quite well.
I clipped through the walls on one or two occations. Having ESC quit the game directly is a bit harsh, I expected a pause screen.
Overall a very nice game. Good job!