Pretty good
The game at the end really should've been omitted, since it realy doesn't fit in with the other submissions. Maybe if more was added to it, it could make for a nice timewaster, but here, it's very much out of place.
With that exception, I liked the others. Twinson's was my personal favorite; the cel-shading style really stood out. Nice 3D effects, also.
The first one, by -cook-, had the best overall art style, and the song rocked ass, but it was too short, and it was hard to see what the author was getting at.
Mynamewontfitin's is my second favorite here. The sparse, acoustic strumming in the background suits the tone here, and the short story illustrated, taken for what it's worth, was different, and, in that same respect nice. Also, the line "there is no more room in heaven, go fly somewhere else" was a great way to end.
Overall, this was a nice collaboration. Using a color limitation is something I have never seen, and it's a great way to test the ability of an animator when their options are limited. Good job.