Just in case you fellow marpers didn't know already: September 30th-October 1st at California Extreme show will be a Marble Madness 2 machine and some other Atari prototype games. That machine is the only MM2 machine known(in net) at the moment, and was only recently put together. The game was never released commercially, only betatested...and by a legend then all the games were destroyed in a desert.(posted 8880 days ago)MM2 was designed to be played with joysticks or trackballs, this machine being a joystick cabinet. Game has lots(about 20 or so) of levels!, all the old enemies + new enemies, short term powerups etc...
http://www.caextreme.org/2000-show/news.html to see some scans check: http://www.caextreme.org/2000-show/Marbleman/Marbleman.htm , at the very bottom of the page
Other MM2 pages: Bobby Tribble's page: http://arcadeathome.efront.com/btribble/mm2.html game archive: http://www.gamearchive.com/video/manufacturer/atari/vector/html/proto.html
CE staff don't want the owner of the game to be bothered by e-mails, and refuse giving e-mail adress of the owner. Nevertheless, to my knowledge the owner is a "hardcore arcade collector" owning some other Atari protos too. And yes, it's likely he'll dump the roms in future, unless he haven't done it allready...aaahhhhhh :)
Anyone planning to go into California Extreme Show this year?
retro greetings, "MrMarble"