Super Mario 64 was the launch title for the Nintendo 64 back on June 23, 1996. It has since sold over 11 million copies! Super Mario 64 was the first 3-dimensional platforming Mario game that didn't make your eyes bug out like Mario Clash for Virtual Boy. Here's a good review of the game by SirHLO on YouTube

If you haven't played Super Mario 64, then you can either find a Nintendo 64 emulator and the ROM or buy the read deal:

* Nintendo 64 System - Video Game Console with Controller
* Super Mario 64