Cute fun puzzle game :-)
Nice concept to both control dark & light and also to use the shadows and light to be able to move. Lot's of levels also and probably some work to test and make them. Nice effort! And I got them all :-)
Maybe in a future update some more challenges or extra obstacles to make it a little bit more difficult and thereby also even more satisfaction when you complete the levels.
Visuals were simple but smooth and polished and very pleasing for the eye. Audio fitted with the game and characters. Controls were good and smooth and nice to be able to control both characters and same time.
Theme is checked and no UI also.
This has been a jam entry well done! Keep it going :-)!