Fine this shouldn't be about for extended as it is going to totally frack up the Survival Scoring in Left 4 Dead 2. But akin to it or not the Skywalker Glitch is now in Left 4 Dead 2. Done by incessantly switching weapons after being shocked by a pipe bomb blast lets players levitate for as long as they continue to switch weapons, allowing you to explore places through journey. But this video does a fine clarification of how you do it and the possibilities are continual as you can do this fault from anywhere after an explosion.