Interactive tutorial is a welcome sight! Its level design is solid and the pacing of concept introduction is good as well. I would just make that tutorial part of the main sequence of levels rather than separating it out; It doesn't get in the way of players familiar with the controls and putting it front-and-center ensures new players get a solid introduction to the game.
The physics are a little wonky, particularly around ramps. Occasionally the forces applied to the player result in a feeling of lost control; maybe make some visual indicator that magnets are affecting the player so we can make sense of the odd motions drawn from it?