Hey Mark,
Great game. A big improvement over V1.2. Feels very polished to play and it's nice to move around. Also, the slight shaking effect that occurs when rotating the switch is really nice.
I just have a few things to address:
1. Hub traversal and throwing the magnet to enter a level can get tedious after a while once you've completed most of the levels.
2. In the accessibility options, when changing the magnet colour, I thought there was a bug at first when I was trying to change one of the magnets from blue to red. After a while, I realised that it was because the 2 magnets couldn't be the same colour. Perhaps if there was some sort of highlight around one of the magnet colours to clarify which one you can't change to yet, would be easier to understand.
I'm really inspired by your game dev series so far and learning a lot from your game development experience.
Good Luck with the rest of the development and keep up the great work! :-)