The mascot for the Famicom Disk System, an add-on for the Family Computer (Japan’s version of the NES). Rather than cartridges, its games used Disk Cards, boasting more storage space, higher fidelity sound, and rewritable saves. The Disk Cards were cheaper than cartridges, too! Players could even go to a kiosk to write a new game on to your disk, rather than having to buy a whole separate one.