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Founded 1984
Headquarters Kure, Hiroshima, Japan
Other Names Kemco▲Seika, Seika, Kotobuki System Co., Ltd.

Kemco (株式会社ケムコ Kabushikigaisha Kemuko = Kemco Ltd.) is a Japanese video game developer. They were originally a huge manufacturer of heavy equipment. The president of Kemco, Seichiro Okuhara enjoyed video games and was good friends with Hiroshi Yamauchi at Nintendo, so they started developing video games for Nintendo's consoles. The company's first game was a Famicom port of the Commodore 64 title Doughboy. They started off primarily porting computer games to the NES, but also made some of their own games as well. Some of the titles they developed were received poorly by critics, such as Superman and the Bugs Bunny games. However, they are best known for their NES adaptations for the ICOM Simulations games Deja Vu (NES), Shadowgate (NES), and Uninvited (NES).

The company is known for rarely putting credits in their games. According to one of the developers, this was due to there not being enough cartridge space. However, their second game, Electrician for the Famicom Disk System contains a staff roll after completing very arduous of tasks. Kiminari Sueda (graphics) and Hiroyuki Masuno (audio) worked on every single NES game they developed.

For their NES games, some of their games were based on Disney characters. Because of different copyright laws in the USA, and Capcom already having the US publishing rights for Disney, Kemco had to change their games to use alternate cartoons when publishing in the USA.


Music Development


Hiroyuki Masuno programmed a sound driver in 6502 assembly. He wrote his music on a CMU-800 and CMU-APL, and then wrote a program to convert his files to the NES for playback.

While Masuno also composed most of Kemco's games, sometimes there were other composers who created music that he had to arrange and implement into his sound driver.


Kemco used their own version of Nintendo's Kankichi-kun sound driver. According to numerous SNES Kemco game credits, Hiroyuki Masuno, Emi Mawatari, and Akira Maeda were the ones who reprogrammed the sound driver. The instrument samples were provided by Sony, the manufacturers of the SNES's S-SMP sound chip. Drakkhen uses unique samples from the Roland S-50.


The composers at Kemco used Nintendo's MP2K engine.

Audio Personnel

This is a list of composers who worked at Kemco:

Picture Gallery