This game's graphics is minimalist at best, and that's it's unique charm. The powerups have it's fun moments of use, especially the dash. And the extra health slot pickups were small bundles of happiness. :)
Now for the issues. The magnetism, the magnetism.....
That feature is useful, but seriously, the ability made me dread staircases and there's a lot of staircases in the game, that dropped my enjoyment a notch, maybe you should use different tiles or platforms for the wall and the floor next time. They can be the same design, so no one would notice, but should be different in functionality.
Secondly, the map. I never got to the final boss, because you made the purple side of the map so hard to access. I examined the map over and over, explored every ounce of the areas I'd been through yet, nothing. Apparently, the only doorway to the purple side was blocked with spikes, which made it inaccessible even by double jumping with a dash. That also dropped my enjoyment a notch, backtracking without a reward, that's brutal...
Lastly, the player movement, make the player faster when moving next time, it will do speedrunners or quick grinders like me a lot of good. ESPECIALLY ON THE MAGNETISM state movement.
Those two things... those two things.... combined with the two other points i listed needs to be fixed.
Nevertheless I still enjoyed the game, great use of color contrast to uniquely separate each area, the boss fights were short, precise and fun. Great game, with a lot of potential. Fix those flaws and I'll definitely be back for more. :)
Cheers! ^^