I'm not sure if there are multiple versions of the US Super Mario 64 cartridges, so I wouldn't know how to tell the difference, sorry. For the japanese versions, the Rumble Pack Edition (Shinou) has a rumble pack sign at the bottom-right of the screen where you see Mario's head. Another difference is that the regular japanese version has the beta Jolly Roger Bay painting with bubbles and a blue painting outline, while the Shinou Edition doesn't.