 The game's soundtrack was composed by Keiichi Suzuki and Hirokazu Tanaka.Tanaka was a video game composer working for Nintendo who had previously composed for games such as "Super Mario Land" and "Metroid", while Suzuki was a composer and musician for bands of many different genres.The NES was only able to play three notes at a time, which Suzuki has noted greatly limited what he was able to produce, as he could not create some of the sounds he wanted.