In the mid 1980's, Nintendo began producing Famicom Disk Writer Kiosks in Japan where a customer could pay ¥500 yen (roughly $5 US dollars) as opposed to ¥2600 yen (roughly $26) for a game and have the game's data written onto a blank cartridge, and replace that game with another game whenever they wanted for ¥500, as an alternative to renting video games which is prohibited in Japan. The Kiosk played a 6 minute demo reel featuring three original music tracks and a short remix of the "Ground Theme" from Super Mario Bros., and cutscenes primarily featuring Mario and Luigi (and a brief appearance by two unknown characters) demonstrating the transfer process using updated assets from Super Mario Bros.