How do peps do this

Got a costom track version of my mod pack

Is it just Mii or do the wall of the Shieka Towers look like a ladder. I mean the designers had to have made it a ladder. How else do you climb it. Spiderman Link can't climb and Shika thing. I mean just look!

Is this a Switch or Switch 2 Game? Or Wii U and or 3DS?