The US and US-derived releases use different music – a mix of new compositions by WAVE MASTER, and some songs, composed by William Kevin Anderson, taken from the soundtrack to the English dub soundtrack of the 2003 animated series the game is based on – to replace both original music from the Japanese game and music originally taken from the Japanese anime.

Sound Director: Teruhiko Nakagawa (WAVE MASTER)
Sound Creators: Yutaka Minobe (WAVE MASTER), Mariko Nanba (WAVE MASTER), Naofumi Hataya (WAVE MASTER), Hideaki Kobayashi (WAVE MASTER), Takashi Endo (WAVE MASTER), Junko Shiratsu (WAVE MASTER), Kenichi Tokoi (WAVE MASTER), Tomoya Ohtani (WAVE MASTER), Tatsuyuki Maeda (WAVE MASTER)
Recording Engineers: Hirokazu Akashi (WAVE MASTER), Yoshitada Miya (WAVE MASTER)
Music Advisor: Kenichiro Isoda

Original TV Animation Score
Music: Takashi Yoshimatsu
"The Music by Takashi Yoshimatsu is produced with the kind permission of Chandos Records, Ltd."
Atom, Giant Robot Appears, Atom-Waltz, Tenma II, Blue Knight II, Smart II, Guts, Fear, Battle IV, Anxious, Tense II
Performance  Conductor: Kazumasa Watanabe
Japan Philharmonic Orchestra  With Solo players from The Toy Box

The Toy Box
Masashi Oshiro: Soprano Sax
Yoshiko Kanda: Percussion
Hiroshi Suzuki: Tenor & Baritone Sax
Ryouko Egawa: Alto Sax
Teppei Kawakami: Trumpet
Jinya Kimura: Tuba
Tetsuro Tohyama: Electric Guitar
Shigeki Ippon: Electric Bass
Recording Director: Kenichiro Isoda
Recording & Mixing Engineer: Kenji Furukawa(AVACO CREATIVE STUDIOS INC.), Hirokazu Akashi(WAVE MASTER), Yoshitada Miya(WAVE MASTER)
Assistant Engineer: Yuichi Kaneko(AVACO CREATIVE STUDIOS INC.), Naoki Sakurai(AVACO CREATIVE STUDIOS INC.)
©2003 Sony Pictures Entertainmet (Japan) Inc.