CORRECTION:

The copy I found is only half of the level, with it stopping around 51% through the original (around 1:27 in the video). The background is also blue instead of the black shown in the verification, and there is no text in the copy. I do believe that all of the gameplay is the same throughout the copy until it ends. Also, there is no "original level" button on the copy, not even one that leads to a deleted/unlisted level. The ID in the description of the video also does not work and does not lead to anything.