Thanks for the detailed feedback. I had fun creating it, not so much because of the point 3, but well, that was came out.
1. I consider do this, but at the end I decided to left relative to the player. I guess it would better relative to the camera.
2. Yeah, the game need a lot of indicators, about the magnetics (for which I only put a flashing circle), the floating directions, and more effects.
3. This was the original idea. Sadly I couldn't implemented :(. I tried but failed to make it work, and eventually I have to decide to make something simpler, but finished, then I implemented what you played. The mechanics of walking over magnetic surfaces and shift from one to another smoothly. However, I'm gonna implement this, now with more time and maybe make another similar game with that mechanic and see what I got.
Thanks again for the feedback, I'm glad you enjoyed it.