Hi, could you please give a hint about location of the second part of the secret key? I have the one from deep down.
the secret door is in the shrine. when you get near the entrance of the "final battle" kind of thing (i think there's two checkpoints on each side), go all the way to the left wall and slide down, you'll see a two block space.
sorry if this was a bad explanation, if you need a video i can post one :)