JOKER UNFORGIVING INVESTIGATOR Original Soundtrack
| Composed by | Akio Izutsu |
| Arranged by | Akio Izutsu |
| Published by | Pony Canyon |
| Catalog number | PCCR-00504 |
| Release type | Game Soundtrack - Official Release |
| Format | 1 CD - 23 tracks |
| Release date | September 01, 2010 |
| Duration | 01:16:52 |
| Genres |
| 1 | JOKER | 06:24 | |
| 2 | 記憶と踊れ | 03:52 | |
| 3 | 覚めない夢 | 03:00 | |
| 4 | Shuffle | 03:30 | |
| 5 | 回路 | 03:25 | |
| 6 | Another Mind | 02:35 | |
| 7 | 事件現場かく語りき | 02:36 | |
| 8 | 疾走 | 03:00 | |
| 9 | 道なき道 | 05:03 | |
| 10 | Burning Back | 03:01 | |
| 11 | 真犯人よ闇で消えろ | 03:14 | |
| 12 | Maverick | 02:41 | |
| 13 | 君は光を見たか | 03:11 | |
| 14 | 波紋 | 02:39 | |
| 15 | 罪の行方 | 02:52 | |
| 16 | 闇の果てに | 03:13 | |
| 17 | Smoking Man | 02:14 | |
| 18 | Kiss Your Shadow | 04:10 | |
| 19 | 優しいひとへ | 02:53 | |
| 20 | ルビンの杯 | 03:01 | |
| 21 | Wild Card | 03:01 | |
| 22 | The Lunatic | 03:26 | |
| 23 | 許されざる捜査官 | 03:51 |
