For fun, I made a chronological list of all the versions of Marunouchi Sadistic I've heard up to this point. I'd imagine there are more that I've forgotten or haven't heard yet. Feel free to contribute.
01. Demotape Version
02. Muzai Moratorium Version
03. Senkou Xstacy Version
04. Gekokujyo Xstacy Version
05. Electric Mole Version
06. Meet the World Beat '04 Version
07. Bokura no Ongaku / Just Can't Help It Version / Spa & Treatment Version
08. Ringo EXPO '08 / Sanmon Gossip Version
09. NHK SONGS version