6-Pak [also known on three volumes in Europe as M6 (or Mega Games 6)] is a Sega Genesis compilation cartridge that was released in 1996. It contains six classic Sega Genesis titles including the original Sonic the Hedgehog.
In the same release date, the European alternative was released exclusively to Europe and its respective. It contains all the games in the US version except for Golden Axe and Super Hang-On. It was also only available for the Sega Mega Drive.