Kaettekita Mario Bros.

Kaette Kita Mario Bros. is an upgraded Famicom Disk System version of the first NES port of the arcade game Mario Bros. There are four modes. Original Mario Bros. is the classic game, upgraded to more resemble the original arcade version. You can now also change direction in midair, and new levels were added, as well as the ability to save your score. Between levels are cutscenes and advertisements for Japanese food company Nagatanien (the game's sponsor), Super Mario Bros. cereal, and even other Mario games, including Super Mario Bros. 3, released shortly before, essentially making this an advergame. The second mode, Nagatanien World, is similar, but once per game, after a game over, you may play a slot machine minigame. Depending on the number of matches, you can gain more lives and continue with your score and phase counters intact. When you reach 100,000 points, you get a get to enter a drawing to win Mario playing cards, and at 200,000 points, another code for a chance to win a copy of Super Mario Bros. 3. The third mode, Name Registration, allows both players to register their name, age, and gender for use when a high score is broken and for honorifics. The fourth mode, Notices, has a Shellcreeper explain the promotional features of Nagatanien World.

The game was a promotional release, and was only available through the Disk Writer.