Nice little game :D
I really like the implementation of the theme through the game mechanics. The wall jump feels very snappy and fun. I would have loved some more secrets in the second level. There were multiple places where you could jump up only to hit dead ends which feels like a shame.
I did find the level design in the second area a bit confusing too, I think it's mainly because you can go either left or right and still sort of end up in the same spot.
Overall, fun game!