I loved the platforming!
The challenge level was just right for me, with dying multiple times but learning each time to get better at flowing through it smoothly. The level design is great, and there's so many different platforming elements you managed to create in such a short time: different kinds of enemies with different behaviors, spikes, moving platforms, one way platforms, delicate platforms, solid platforms, all in addition of the mechanic of the darkness following you and picking up the lights to hold it back.
I am terrible at platformer boss fights however, and didn't manage to win. But I had fun.