6月27日发售OST，共计47首歌曲！
01. MEGALOBOX
02. MEGALOBOX (Sorrow)
03. MEGALOBOX (Acoustic) / Michael Kaneko
04. Beginning of the Fight
05. Battlefield
06. Deadlock
07. The theme of Gansaku Nanbu
08. The theme of Gansaku Nanbu (Sorrow) / 井上陽介
09. The theme of Gansaku Nanbu (Slow)
10. A Day In The Life
11. The theme of Sachio
12. The theme of Sachio (Sorrow)
13. The Slum City feat. COMA-CHI
14. The Slum / 関口シンゴ
15. The Slum (Night) / 関口シンゴ
16. The theme of Bangaichi / Michael Kaneko
17. Get up / Michael Kaneko
18. The theme of Yukiko Shirato
19. The theme of Yukiko Shirato (Slow)
20. The theme of Yukiko Shirato (Fanfare) / Shingo Suzuki
21. The theme of Fujimaki / 関口シンゴ
22. The theme of Aragaki / 関口シンゴ
23. The theme of Aragaki (Piano ver.) / 別所和洋
24. Heartwarming
25. The theme of Mikio Shirato
26. The theme of Mikio Shirato (Slow)
27. Lost In Grief (Deep)
28. Conflict
29. Change The Situation 1
30. Change The Situation 2
31. The theme of Yuri
32. The theme of Yuri (Slow)
33. Darkness
34. Confession
35. Resolution
36. Resolution (Slow)
37. Drive
38. Gearless Joe feat. COMA-CHI / DJ BAKU
39. Megalonia News Network
40. Enter The Arena
41. The theme of Glen Burroughs / DJ BAKU
42. The theme of Pepe Iglesias / 関口シンゴ
43. We are Bangaichi feat. Sachio / Michael Kaneko
44. The Beast feat. COMA-CHI
45. The Beast (Instrumental)
46. Celebration
47. The Ending / mabanua & 井上陽介