The second Cowboy Bebop soundtrack, released October 21, 1998. Composed by Yoko Kanno and performed by The Seatbelts, featuring experimental B-sides and outtakes that didn't make OST 1. Notable tracks include the haunting vocal piece "Green Bird" (featured in Session 5), the playful "Cats on Mars," and the eccentric "Vitamin" interludes. The album spans whimsical jazz, ethereal vocals, blues, and avant-garde experimentation, showcasing The Seatbelts' creative range beyond the main soundtrack.

1. Vitamin A
2. Cats on Mars
3. Vitamin B
4. The Singing Sea
5. Vitamin C
6. Clutch
7. Bad Dog, No Biscuits
8. Vitamin D
9. Stella by Moor
10. Go Go Cactus Man
11. Vitamin E
12. Vitamin F
13. Chicken Bone
14. Mushroom Hunting
15. Green Bird
16. Adieu
17. Want It All Back
18. Vitamin X
19. Diggin'
20. Vitamin Y
21. Diggin' My Potato
22. ELM
23. Vitamin Z
24. N·Y·Rush
25. Vitamin A (reprise)