Game Averaging

Each player goes through a game a little differently, and now there’s a very interesting way to examine the paths taken. I’ve seen two videos in which multiple playthroughs of a game are layered one on top of the other. The camera follows to victorious playthrough while showing what happened to the others as well.
There’s a SelectButton article on averaging a Super Mario World romhack at http://forums.selectbutton.net/viewtopic.php?t=11948, and the original article about averaging Gradius at http://thenewgamer.com/content/archives/averaging_gradius by R. LeFeuvre. The creator edited an emulator to record each playthrough and put them together into one video, but the Mac version is needed to complete it. I find it very interesting to see one single Mario, where apparently everyone stood at the same spot, break into a hundred as each playthrough had Mario go a different route.