Very interesting!
This is almost like a Flash baton pass (hence the name Pass-My-Flash, of course). What's cool about this is not only is it created by several skilled animators, but as the Flash progresses, you see the contrasts between art, skill, and animation styles. It was very enjoyable to watch as well as dissect, figuratively. Mike took the cake in the end due to the comedy, detail to shading and highlight, cinematics, and incredibly well-synced movements.
I would very much enjoy a third.