Kaettekita Mario Bros.

Kaettekita Mario Bros. is an updated version of Mario Bros. that was released only in Japan. It had several new features including new levels and the option to save high scores. Excluding ports, this is the last Mario Famicom game. It was co-published by Nagatanien, a food company, and contains in-game advertising.

The story of this game revolves around two plumbers, Mario and Luigi, who are working in the sewers of New York. The sewers are overrun by waves of enemies and the Mario Bros. have to defeat the enemies and collect coins to receive their pay.