d2b vs DEARDROPS -Cross the Future- Collaboration Maxi Single "Happy Crossing"
| Published by | Overdrive |
| Release type | Game Soundtrack - Promo / Enclosure |
| Format | 1 CD - 4 tracks |
| Release date | November 25, 2011 |
| Genres |
Comes with the physical release version of the game.
| 1 | Happy Crossing |  | |
| 2 | 俺が俺である為に | | |
| 3 | Happy Crossing (off vocal) | | |
| 4 | 俺が俺である為に (off vocal) | |
