Hey, that first secret seems familiar.... Thanks for using my idea! I also didn't know the second fact so thanks for that too! Keep doing what you're doing :)
There's also some good tutorials for the same thing labeled as monkey climbing i believe,, but I'll translate the buttons for you: L1 = LB R 1 = RB (LB and RB may be LT and RT depending on your controls setup) Square = X X = A Hope this helps you!