As an independent composer, Yamashita continued to score soundtracks for video games, including "Mega Man X3", but she also worked on various Natsume games, including "Power Blade", the "Medabot" series, "Zen-Nippon Pro Wrestling" series, "Bass Masters Classic" (Game Boy Color), ' (GBC), "WWF Wrestlemania 2000" (GBC), among others.
=== 1990-е ===В качестве независимого композитора Ямасита написана музыку ко многим играм разных компаний, включая игры "Mega Man X3", "Power Blade", серию Medabot, Bass Masters Classic (для Game Boy Color), "", "WWF Wrestlemania 2000"; Zen Nihon Pro Wrestling (совместно с Ику Мидзутани и Хироюки Ивацуки).