游戏主题曲是由著名摇滚歌手Jaret Reddick创作的Endless Possibility，在E3大战上首次亮相。结尾曲采用了与以往所有Sonic游戏不同的轻音乐Dear My Friend，由Brent Cash演唱。此次还邀请了东京爱乐乐团为游戏演奏了开场音乐"The World Adventure"。
原声带Sonic World Adventure Original Soundtrack Planetary Pieces于今年一月发行，包括了上述音乐以及其他游戏背景音乐。
【專輯曲目】：
CD 1
1. Endless Possibility - Vocal Theme
2. Cutscene - Opening
3. Cutscene - A New Journey
4. Apotos - Day
5. Windmill Isle - Day
6. Cutscene - The First Night
7. Cutscene - Tails In Trouble!
8. Intro: Windmill Isle - Night
9. Windmill Isle - Night
10. Apotos - Night
11. Cutscene - To Spagonia!
12. Tornado Defense - 1st Battle
13. Mazuri - Night
14. Intro: Savannah Citadel - Night
15. Savannah Citadel - Night
16. Cutscene - Same As Ever
17. Cutscene - Gaia Manuscripts
18. Cutscene - Eggman Again
19. Cutscene - Sonic Appears
20. Mazuri - Day
21. Savannah Citadel - Day
22. Cutscene - The Egg Beetle
23. Boss Battle - Day
24. Boss Stage Clear
25. Cutscene - Temple Activated!
26. Cutscene - Planet Pieces
27. Holoska - Day
28. Cool Edge - Day
29. Spagonia - Night
30. Intro: Rooftop Run - Night
31. Rooftop Run - Night
CD 2
1. The World Adventure - Orchestral Theme
2. Gaia Gate
3. Chun-nan - Night
4. Intro: Dragon Road - Night
5. Dragon Road - Night
6. Boss Battle - Night
7. Cutscene - Eggman's Idea
8. Rooftop Run - Day
9. Spagonia - Day
10. Chun-nan - Day
11. Dragon Road - Day
12. Holoska - Night
13. Intro: Cool Edge - Night
14. Cool Edge - Night
15. Cutscene - Project Dark Gaia
16. Shamar - Day
17. Arid Sands - Day
18. Empire City - Night
19. Intro: Skyscraper Scamper - Night
20. Skyscraper Scamper - Night
21. Shamar - Night
22. Intro: Arid Sands - Night
23. Arid Sands - Night
24. vs. Titan & Big Mother
25. Empire City - Day
26. Skyscraper Scamper - Day
27. Stage Clear
28. Result Screen - E Rank
29. The World Adventure - Piano Version
30. The World Adventure - Jingle
CD 3
1. Werehog Battle Theme
2. Adabat - Night
3. Intro: Jungle Joyride - Night
4. Jungle Joyride - Night
5. Adabat - Day
6. Jungle Joyride - Day
7. Cutscene - Chip's Change
8. Cutscene - Chip's Memories
9. Cutscene - No Reason
10. Tornado Defense - 2nd Battle
11. Cutscene - Eggmanland
12. Eggmanland Entrance
13. Eggmanland - Day
14. Eggmanland - Night
15. Cutscene - The 7th Continent
16. Cutscene - Congratulations
17. Cutscene - The Egg Dragoon
18. vs. Egg Dragoon
19. Cutscene - Dark Gaia Appears
20. Cutscene - Shrines in Flight
21. Cutscene - Hour of Awakening
22. vs. Dark Gaia
23. Cutscene - Dark World~Hope and Despair
24. Cutscene - The Final Form
25. Super Sonic vs. Perfect Dark Gaia
26. Cutscene - Annihilation
27. Cutscene - Rekindled Light~Save the Speech!
28. Cutscene - To the Surface
29. Cutscene - Always
30. Dear My Friend - Ending Theme
【下載連結】：
