I couldn't finish the first level, because I kept falling through the top middle platform.
The game isn't really original, this concept having been explored through the years with more interesting twists.
In this game, light and dark doesn't mean anything : when you touch a platform, you just have to jump again to exit it, and as such, it's just a traditionnal platformer, with an additionnal jump necessary once you touch any platform, and with a lot of bugs that make you phase through the walls.
I'm sorry, but it isn't a good game in my opinion: even though you clearly have a researched aesthetic, there's nothing behind it.