Family Computer Disk System
The Family Computer Disk System (also called the Famicom Disk System) is an accessory for the Family Computer. It allowed the Family Computer to play certain games on floppy disks rather than ROM cartridges. Floppy disks had the advantages of being cheaper. Besides that, the disks were rewritable, making saving easier. Sharp Corporation, a Japanese Electronics and Domestic Appliance company, created the Twin Famicom, a Family Computer combined with the Disk System into one piece of hardware, but it was also only released in Japan.
The main reason why Famicom Disk System was not released outside Japan is believed to be due to a lack of success caused by various issues with the system:
The piracy issue was an especially big problem for Nintendo, and is believed to be the source of their stringent policies regarding copyright protection. It is also widely believed that the FDS's high piracy rate is what convinced Nintendo to use cartridges for the Nintendo 64 rather than the technologically superior optical discs seen in their rivals, the Sega Saturn and Sony PlayStation.
In 1986, Nintendo sought to counter FDS piracy by installing special Famicom Disk Writer kiosks that would allow consumers to download games onto Nintendo floppy disks for ¥500 as opposed to the retail price of ¥2,600; some FDS games were even exclusive to these kiosks. The service was very popular, remaining in place until the Famicom line's discontinuation in 2003, 9 years after the discontinuation of the Famicom Disk System itself.
Here's the list of Mario or related games released for the Disk System:
Names in other languages