This one is part of these 4, but it includes said psycho, a weird glitch, and is pretty funny.
http://www.youtube.com/watch?v=F_u8yT9ox7k&feature=share&list= UUmN-phi2fLNt3QSJ0hVQsbw
I was really interested in this game, but the reviews when it hit combined with all the controversy surrounding it kept me from ever giving it a chance. I almost wish I had, now.