I didn't expect to get SO into this game, but I really became obsessive in trying to complete all the levels!! I played some levels while queueing for games in Overwatch, so it was a perfect way to keep me busy hehe..
I agree with what a lot of people said in the comments: the dark levels are hard & tedious without hints.
Despite that, I finished the complete game, so good job on creating a game that got me hooked (●'◡'●)/