It seems that footage of a Japanese program by the name of Game Catalog 2 has resurfaced which included unique beta gameplay of Super Mario 64 and Super Mario RPG!
These games were hosted on the show before the games were officially released and the gameplay shows how some certain aspects of the game have changed!
Check them out below:
Super Mario 64-
Super Mario RPG-
If we have any more information to share we will cover it here at NintendoSoup so stay tuned for more!