Hello, world. - Blue Memory
| Composed by | Masayoshi Murakami / Yoh Ohyama |
| Published by | Nitroplus |
| Catalog number | DWC-0297 |
| Release type | Game Soundtrack - Official Release |
| Format | 1 CD - 4 tracks |
| Release date | August 10, 2001 |
| Duration | 00:20:41 |
| Genres |
| 1 | 青い記憶 | 05:10 |  |
| 2 | There's the earth link somewhere | 05:13 | |
| 3 | 青い記憶(off vocal version) | 05:10 | |
| 4 | There's the earth link somewhere(off vocal version) | 05:08 |
