That warp zone tricked me up the first time until I learned the jumps to get the bandages. It takes some tricky wall jump skills, but you can do it man.
I thought the trickiest levels were Skyscrapers (first warp zone in Rapture, chapter 5), which took me two hours to complete
, and the Kid warp zone, which took me almost four hours.
But everything can be overcome with patience and practice.
Also, don't even talk to me about Cotton Alley.