Sound and graphics look nice. Maybe don't have the particles effect following the wheel of the character, when we jump we can see it follow it weirdly.
I think the character should not loose as much momentum when landing. I find it a bit frustrative to be slowed down after each jump.
I liked to grab the magnet in midair because it repositioned the character a bit. It made me think about the mirror temple in Celeste where you can throw and catch a big crystal and it repositioned the character in an interesting way. Maybe you could play with this mechanic also ?
Sorry I did not finish the game, I really don't like puzzle games in general...
