is a 1983 LCD game developed and published by Nintendo under their Game & Watch series. It follows earlier Mario games, like the arcade and Game & Watch versions of Donkey Kong. Players control Mario as he navigates elevators and funnels cement through a factory, while trying to prevent the cement from crushing his fellow workers. Two versions of the game were released — a Table Top unit and a handheld game akin to most other Game & Watch titles. Development was headed by Nintendo R&D1, led by engineer Gunpei Yokoi. The game has been re-released several times; it was featured as part of Game Boy Gallery for the Game Boy, Game & Watch Gallery 4 for the Game Boy Advance, and as a digital download for the Nintendo DSi. It has been described by critics as one of the strangest games in the Mario franchise. Gameplay Mario's Cement Factory puts players in control of Mario, who works at a cement factory where he funnels cement into cement trucks. Mario must navigate two dangerous elevators and avoid falling or being crushed and losing a life. He must also continually empty cement into the trucks, or else the cement will overflow and crush one of the workers below, which costs players a life. There are two game modes: A and B, the latter being faster paced and more difficult. Development Mario's Cement Factory was developed by Nintendo R&D1, which at the time was led by Gunpei Yokoi, and published by Nintendo. Like all Game & Watch releases, each unit is a standalone portable device that doubles as a clock and can only play the one game. Hirokazu Tanaka composed the game sounds. Two versions of the game were released. The first is part of the Game & Watch Table Top series and debuted on April 28, 1983. It has a full color illuminated screen, and approximately 250,000 models were produced. The Table Top series did not sell as well, leading to Mario's Cement Factory being one of only four Table Top units ever produced. A smaller handheld version was later released on June 8 as part of the New Wide Screen series. It has a monochrome screen with a color overlay, and approximately 750,000 units were produced. The game was released the same year that Nintendo's Famicom system debuted in Japan, and two years after the first Mario title (the arcade