Whats the old computer game about a man who falls asleep on a bus and ends up in a scary comic book?

Back about 8-10 years ago, I played a computer game at my daycare (I'm in college now) that involved a man getting onto a bus, then subsequently fell asleep and somehow went into this comic book he had. I dont remember any other details, other than at the time of me being around 8 or so, it scared me a lot playing it. I do remember several parts of it, like having to crawl through a vent to escape a guy with an eraser head, an ice queen person who shot hockey pucks and some kind of quick sand stuff. I remember it being 3D, if that helps. Thanks for any help.