Registered just to comment on this thread. LOVING Velocity! I'm through the first 35 zones (I play each zone until I get a perfect rank). Great stuff.
Anyone else with the game, could you point me to which zone has the unlock for bonus mission 5? It's the only one I've missed so far.
Also, what am I missing on bonus mission 14? I get to the end and it tells me to rescue more survivors. I definitely grab every one of them along the main route, and I've tried to find hidden out of the way sections about 20 times without success.
Edit: the Community wall paper is the best easter egg ever!