projects were developed independently of each other. The original arcade game soundtrack was composed entirely by female video game music composer Junko Tamiya, who was not credited for her work in the arcade version but was mentioned as part of the original arcade staff in some console adaptations. Early revisions of the arcade game were missing the unique music for the Aerial Battleship and Third Moon stages. In this version the music from the first stage of the game was repeated here instead. Strider contains many different styles of themes that change dynamically throughout the game according to the stages and the situations on screen. These range from experimental and progressive futuristic sci-fi action themes to baroque, tribal and classical music pieces. Elements from the soundtrack have also been used in other Capcom games where Hiryu has appeared. These include the Marvel vs. Capcom series as well as other Strider related games. Ports Ports of Strider for the Amiga, Amstrad CPC, Atari ST, Commodore 64, IBM PC compatibles, and ZX Spectrum were published by U.S. Gold and developed by Tiertex in 1989. The U.S. Gold versions have the order of the third and fourth stages swapped (the order of the cut-scenes were kept the same, causing a continuity error), and the final battle with the Grandmaster missing (the last stages end with the battle against the giant robot gorilla Mecha Pong). As a result, the ending was changed to reveal that the events of the game were a simulation that the player was going through. All five versions featured downgraded graphics, less music and missing enemies compared to the arcade version. Additionally, the controls were modified so that the game would be compatible with one-button joystick controllers. Despite these changes, all of the U.S. Gold releases received high review scores by computer game magazines of the time. Later, in 1992, the assets of the Amiga versions were used for the conversion on the Sega Master System, also made by Tiertex. A final fight with the Grandmaster was added in this version, but the ending credits continue to say that all was just a simulation. Sega produced their home version of Strider for the Mega Drive/Genesis, which was released in Japan on September 29, 1990, with subsequent releases in North America and the PAL region. It was advertised as one of the first 8-Megabit cartridges for the system, and went on