Mario Demo (lost Virtual Boy tech demo; 1994)
At Shoshinkai 1994, Nintendo demonstrated their then-upcoming console, the Virtual Boy. To demonstrate its stereoscopic 3D effects, they made a brief demo featuring one of their most recognizable characters, Mario.
A rendered image of Mario appeared under the Virtual Boy logo, and then the logo flew towards the viewer letter by letter. The demo was also apparently hard coded onto the Virtual Boy prototypes.