Duck

Duck (Chinese: 醜小鴨; pinyin: Chǒuxiǎoyā; literally: "Ugly Duckling"), is a platform puzzle game developed and published by Bit Corporation in 1987, making it the very first Nintendo unlicensed video game released for Famicom (internationally known as NES). The title has been later published in 1990 as Duck Maze by HES and Dismac, respectively in Australia and Brazil.