Sanguine2008-09-23 (updated 2008-09-28) #Sega Genesis Collection video game infoNot in PAL version: Shadow Dancer: The Secret of Shinobi Unlockable (arcade) games: Altered Beast, Future Spy, Tac/Scan, Zaxxon and Zektor.source: en.wikipedia.org/wiki/Sega_Genesis_Collection