Joining the company in 2002, Komiyama was originally involved with the Mega Man X series of games, replacing the departed Naoto Tanaka (aka Akemi Kimura) as sound director for Mega Man X7 (which featured a fusion of electric and rock elements) and X8 (more rock oriented). In addition to the change in genre, she is also known to utilize motifs; this is especially apparent in X8. She was also a sub composer for Command Mission, the series' RPG-spinoff, and composed promotional music for Glass Rose, working with Seiko Kobuchi in both instances.