Million Onion Hotel Soundtrack Side2
| Composed by | Hirofumi Taniguchi |
| Published by | Onion Games |
| Release type | Game Soundtrack - Official Release |
| Format | 1 Digital - 16 tracks |
| Release date | January 27, 2018 |
| Duration | 00:21:32 |
| Genres |
| 1 | Onion Time: Magic Party | 00:36 | |
| 2 | Song of the Universe: Pt. 4 | 01:24 | |
| 3 | Black Hole -The Perfect Hikkuri Mk3- | 03:24 | |
| 4 | The Doctor Scampers | 00:12 | |
| 5 | Onion Time: Robot Factory | 00:32 | |
| 6 | Song of the Universe: Pt. 5 | 01:24 | |
| 7 | The Final Assassin Teruli-Teruli | 05:20 | |
| 8 | Rumba Rumba | 01:16 | |
| 9 | A World Without Bingo | 03:00 | |
| 10 | Bad Ending Jingle | 00:07 | |
| 11 | Good Ending Jingle | 00:20 | |
| 12 | Song of the Universe: Pt. 6 | 01:32 | |
| 13 | Ex Track - Onion Time: Onion Hotel | 00:28 | |
| 14 | Ex Onion Time: Peace Labo | 00:17 | |
| 15 | Song of the Universe (Instrumental Primary Version) | 01:29 | |
| 16 | To Be Continued 2017 Bitsummit | 00:11 |
