This exercise is simply a varition of the exercise in 'Part 1'.
Instead of moving through the left hand fingers in a 1, 2, 3, 4 order it moves through them in a 1, 4, 2, 3, order (index, pinky, middle, ring).
When it shifts to descend the order changes to 4, 1, 3, 2.
Here is the tablature representation (click on tablature to enlarge)...
Like the title says; pretty wacky. A bit of a finger-buster to boot. Gets your hand moving in ways it is not used to though and may inspire some alternative sonic reasoning.