Famicom Disk System BIOS
Famicom Disk System

Developer: Nintendo Publisher: Nintendo Release date: February 21st, 1986 (Japan only) ESRB rating: N/A

Cameo appearances

After turning on the system, Mario runs by and hits the switch under the Nintendo sign, changing the color of the sign and screen border. Not long thereafter, Luigi runs by and hits the switch, which changes the colors to a dark blue, and what follows is an amusing "battle" over the color scheme. The show's over whenever you decide to set your disk card.