Game info
System: Nintendo Entertainment System [Famicom Disk System]
Developer: Nintendo
Publisher: Nintendo
Famicom Disk System BIOS screen shot
Release info
[Japan] Famicom Disk System BIOS
Date: 2/21/1986 Catalog #: N/A  
Cameo appearances and references

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.

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The Mushroom Kingdom \ The Games \ Nintendo Entertainment System \ Famicom Disk System BIOS