A marathon, and extremely satisfying to complete

This level took me 2+ hours to beat because of some horrible checkpoint placements on my point, leaving me stuck at the spot with the 2 moving rectangles (rectangular prisms). There was sweat (a lot), tracking losses, music to cope with the failures, pain, joy, anger, excitement, determination, sore arms and back, and finally, the end. There I was, after several failed attempts on missing the helicopter, I make it. Climbing in this game has never felt that good (although it was a bit scary since I still could of fell, and there was another jump that I could of missed, but luckily neither of those things happened).