Family Computer Disk System
The Family Computer Disk System is an accessory for the Family Computer. It allowed the Family Computer to play certain games on a floppy disk rather than a cartridge. 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 for the FCD's Japan-only release is believed to be due to a lack of success caused by various issues:
Here's the list of Mario or related games released for the Disk System:
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