Pretty cool! Good use of the colour-switching mechanic. Booting the player back to the first level when you die is harsh, but restartign is so quick that I didn't mind at all - I was quickly settling into a rhythm. Well done.

Nice game! The platforming is very smooth and forgiving which allowed it to be challenging because of the swapping light/dark which I appreciate. I would usually advise not hard-resetting in jam games but I think in this case it worked really well and made me feel like I was speed-running it by the end. Well done! :) (I would get rid of that big 'you failed' that triggers when you fall in the win screen though haha)