You may have heard of rocket jumping in Quake before. These guys in the Tricking iT video make plain old rocket jumping seem so...mundane.
I can't decide what I'm most blown away by: the tricks, or the Matrix style editing/AfterFX/music. I'm almost hoping this is done through frame-by-frame emulation, because I'm not sure I want to live in a world where someone can be this much better at Quake3 than me. Granted, they've got god mode on, but still.
Hrm, copyright date at the end says this is from 2004, but I've never seen it before.