Pumptris Quattro

(Right foot)(Left foot)(Right foot)(Left foot)(Right foot)

Based on the correct footwork for the round-trip stairs, the answer is to proceed without changing your point of view. Also, there is no recovery section between the first and second.

If you drag and mash, it doesn't take much stamina and is easy.

I picked this as a warm-up, but I stepped on a landmine. I think this level of stairs is on the harder side for a level 20.