Tracks
| # | Title | Sung by | |
|---|---|---|---|
| 1 | ECHO (Readmission remix) | Crusher-P | 4:00 |
| 2 | ECHO (2024 remaster) | Crusher-P | 3:49 |
| 3 | ECHO (2024 remaster off-vocal) | Crusher-P | 3:49 |
| 4 | ECHO (ReAdmission remix off-vocal) | Crusher-P | 4:00 |
Source: MusicBrainz release group 341d8c7c-2d3d-411f-b75a-2b2fd31c3ff6 (CC0). Cover: Cover Art Archive.