I don't care how many units were 'sold'. It gets real old, real fast.
LOL, Sorry but pack-in titles do not count as purchases. What about Super Mario World? What about Sonic the Hedgehog?
Agreed. As culled from wikipedia, 20 million copies of Super Mario World were shipped and surprisingly only 6 million copies of Sonic.
Super Mario Bros was a pack-in, too.
The best selling non-pack in is probably something lame like World of Warcraft.
Also taken from wiki - SMB3 is the best selling console game at 18 million, closely followed by Wii Play at 16.15 million. Though not on consoles or singular games - 20.08 million copies of Pokemon Red, Blue, Green, and Ghey were sold for the Gameboy and the Nintendogs quintuplets have sold 20.03 million copies thus far on the DS.