Thank you for the review!
Yeah, perhaps I should have introduce some difficulty settings, but sadly didn't have too much time to do that.
In general in this case it can be a bit hard to balance, because when you get how everything works, then 3 or even 2 lives can make it too easy. So I decided to leave only 1 live (and then don't need to make system for lives :D), which may not be the best strat for game jam.
For magnets, spinning direction depends on the angle you came in the magnet orbit. So you can change direction if you bounce off the wall into magnet orbit with the angle you need.