Watching the full version, you can really feel the frustration of his failure. With all of the things that didn't go his way, someone could just put the Yakety Sax song here and it would fit. Jammed weapons, failed bombs, doors that won't open despite being shot multiple times, that slow dude he couldn't shoot despite standing in front of him for a long time before having the right of mind to get back in his car and drive away from the crazy killer. He probably even shot the wrong people.