| 34°N, 12°E …for Mad Space | | | | | | | |
| Apotos - Day | | | | | | | |
| Apotos - Night | | | | | | | |
| Appreciate | - 大谷智哉 (composer, lyricist)
- 熊谷文恵 (composer)
| | | Song | | | |
| Argoyle G | | | | Song | | | |
| BOSS BATTLE: BIOLIZARD "SUPPORTING ME..." | | | | | | | |
| Boss Stage Clear | | | | | | | |
| Bright Sound ...for Dry Lagoon | | | | | | | |
| Can still see the light (Lyric Version) 〜Phantasy Star Online ENDING THEME〜 | - 橋本寛 (lyricist, translator)
- 熊谷文恵 (composer)
| | | | | | |
| Carnival | | | | Song | | | |
| Chao Garden Extended Mix (Chao’s Wack-Wack Up & Down the Ground mix) | | | | | | | |
| Chao Race Extended Mix (Chao’s Doki-Doki Banana Chips Run mix) | | | | | | | |
| Codes of silence | | | | Song | | | |
| Cool Edge - Night | | | | | | | |
| Crazy Robo …Boss: E101R | | | | Incidental music | | | |
| Crescendo To Finale | | | | Song | | | |
| Cutscene - Broken Chains | | | | | | | |
| Cutscene - Finally go home? | | | | | | | |
| Cutscene - Free from Nega-Wisp Factory | | | | | | | |
| Cutscene - Hyper-go-on Surge | | | | | | | |
| Cutscene - Robot’s Lost & Found | | | | | | | |
| Cutscene - Robots & Wisps | | | | | | | |
| Cutscene - The Core | | | | | | | |
| Cutscene - Wisp’s Homeworld | | | | | | | |
| Cutscene - Yacker’s Goodbye | | | | | | | |
| Cutscene - Yacker’s Plea | | | | | | | |
| Cyber - サイバー - | | | | Song | | | |
| Deep it Lies | | | | Song | | | |
| Dreaming Youngsters (Elliot version) | | | | | | | |
| Egg Carrier | | | | Incidental music | | | |
| Eggman’s Facility [Rhythm and Balance Remix] | | | | Song | | | |
| Empire City - Day | | | | | | | |
| Empire City - Night | | | | | | | |
| Empty space out of control PART1 | | | | Song | | | |
| Empty space out of control PART2 | | | | Song | | | |
| Entry into The Crater -PART1- | | | | Song | | | |
| Entry into The Crater -PART2- | | | | Song | | | |
| Event: Good-bye! | | | | Song | | | |
| Event: Sadness | | | | Song | | | |
| Event: Sonic vs. Shadow | | | | | | | |
| Event: The Last Scene | | | | | | | |
| Fakery Way …for Twinkle Park | | | | Incidental music | | | |
| Fly in the Freedom | | | | Song | | | |
| Fly Up Ivy | | | | Song | | | |
| For Brighter Day | - 熊谷文恵 (composer, lyricist)
- 床井健一 (composer)
- 橋本寛 (translator)
| | | Song | | | |
| For Brighter Day - Orchestra Version - | | | | Song | | | |
| For Brighter Day - Remix - | | | | Song | | | |
| For True Story …for Sonic vs. Shadow | | | | Song | | | |
| From seeing the rough wave | | | | Song | | | |
| Gaia Gate | | | | | | | |
| Game Over | | | | | | | |
| Gloom of the N.H.C. (Bitter Ver.) | | | | | | | |
| Goin’ Down!? …for Speed Highway | | | | Incidental music | | | |
| Habirao F.D. | | | | Song | | | |
| Hakura Temple | | | | Song | | | |
| Halloween | | | | Song | | | |
| Holoska - Day | | | | | | | |
| Holoska - Night | | | | | | | |
| I’m a Spy …for Security Hall | | | | | | | |
| Image of hero | | | | | | | |
| Intro: Cool Edge - Night | | | | | | | |
| Intro: Savannah Citadel - Night | | | | | | | |
| Intro: Skyscraper Scamper - Night | | | | | | | |
| Intro: Windmill Isle - Night | | | | | | | |
| Introduction …featuring “Open Your Heart” | | | | Song | | | |
| It's Too Good To Be True | - 熊谷文恵 (composer, lyricist)
| | | Song | | | |
| Join Us 4 Happy Time …for CHAO Race | | | | Incidental music | | | |
| Joy | - 熊谷文恵 (composer, lyricist)
| | | Song | | | |
| Judgement Path | | | | Song | | | |
| Jungle -A forest cage- | | | | Song | | | |
| Jungle -A lush load- | | | | Song | | | |
| Lazy Days ~Livin’ in Paradise~ | | | | Song | | | |
| Letz Get This Party Started …for CHAO Race Entrance | | | | Incidental music | | | |
| Limestone Cave …for Icecap | | | | Song | | | |
| Lovely Gate 3 …for Egg Quarters | | | | | | | |
| Making Character | | | | Song | | | |
| Mare Over | | | | | | | |
| Mazuri - Day | | | | | | | |
| Mazuri - Night | | | | | | | |
| Mirei | | | | Song | | | |
| Misty | | | | Song | | | |
| Mizuraki C.D. | | | | Song | | | |
| Morgue PART1 - モルグ01 - | | | | Song | | | |
| Morgue PART2 - モルグ02 - | | | | Song | | | |
| My Sweet Passion | | | | Song | | | |
| Mystic Ruin | | | | Song | | | |
| Nebula Montana PART1 - ネピュラ高地01 - | | | | Song | | | |
| Nebula Montana PART2 - ネピュラ高地02 - | | | | Song | | | |
| Neudaiz | | | | Song | | | |
| NiGHTS into dreams… | | | | Soundtrack | | | |
| NiGHTS: Journey of Dreams | | | | Soundtrack | | | |
| Ohtoku City - Neudaiz - | | | | Song | | | |
| Open Your Heart | | | | Song | | | |
| Option Screen | | | | | | | |
| Paternal Horn (Sweet Ver.) | | | | | | | |
| Phantasy Star Online | | | | Soundtrack | | | |
| Phantasy Star Universe | | | | Soundtrack | | | |
| Ravum Aedes Sacra - ラウムの神殿 - | | | | Song | | | |
| Result Screen | | | | | | | |
| Revelation | | | | Song | | | |
