Nice little metroidvania. Loved the character design.
The platforming felt a little punishing because of the physics (the first ladder was a special challenge to climb without falling), which is understandable being the time constraints of a jam. Our game suffers from that too.
I think it couldve smoothed a little with more checkpoints (now that I reflect on it, I may add some in my platformer too if I get the time!).
The light mechanic was really well implemented. And the amount of enemies you managed to add is really remarcable!
cheers!