I only watched the clear video, but I like what I saw so much that I really want to play it now (even though I suck at cape). What an absolutely sick hack. Tons of cool tricks and creativity. It's clear a lot of heart went into this.
Major spoilers below:
Highlights for me were the creative use of inertia and retaining states through p-balloon in Law of Inertia, the Heaven-reminiscent 2nd half of Unpurgatory, the creative line guide management in Ultra Flight, and pretty much all of Biofuel and 5 Nights at Louis' (blue koopa nonsense, avoiding big boo, using fish to turnaround, shell clip trick. all great stuff). In particular, the 2nd half of Biofuel is genius. That shell spinfly trick is so awesome.
Great work everyone.