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Jaleco Ltd.
Founded October 3, 1974
Headquarters Japan

Jaleco Ltd. (株式会社ジャレコ Kabushiki Kaisha Ja-Re-ko) is a Japanese game developer founded in 1974. It is probably known best for its Bases Loaded franchise. The company's name stood for "JApan LEisure COrporation". It first started as an amusement equipment developer. In 1983, they formally changed their name to Jaleco Ltd. From the 1980s to the 2000s, the company developed and published many video games on various systems, but on November 1, 2000, Jaleco was purchased by PCCW and renamed to PCCW Japan which itself was bought in April 2001 by the VR-1 Group. In October 2002, PCCW Japan merged Jaleco USA and VR-1 Entertainment to form Jaleco Entertainment, which in 2004, was renamed to just Jaleco. The video game division was spun off on July 3, 2006 to Jaleco Ltd which was later sold to Game Yarou on January 15, 2009. Jaleco Holding, which no longer made video games, then changed its name to Emcom Holdings to dissociate itself from its video game past.


Audio Development


Big Run uses a sound driver by Yasuhiko Takashiba.

Rod-Land and Soldam credit the sound driver to "Panic Yuma". These games required the music to be entered in a custom form of Music Macro Language. The snare drum and bass drum samples in Soldam are taken from a Roland MT-32.

Game Boy

Jaleco programmed their own sound driver. The first version by Tsukasa Tawada, and the second by an unknown programmer. The music was written on a PC-9801 computer in Music Macro Language, and then compiled and converted into the sound driver.

Audio Personnel