R · SYSTEM definitive edition BGM data Music Works ECHIKUSO5 (1995,  by OB PROJECT) |
Music |
| R · SYSTEM definitive edition BGM data Music Works ECHIKUSO6 (1995, by OB PROJECT) |
Music |
Silent Ripper (1994,  by Studio Sequence) |
Guest composer |
| ECHIKUSO 8 (1996, by OB PROJECT) |
Music |
| ECHIKUSO 3 (1994, by OB PROJECT) |
Music |
| ECHIKUSO 4 (1994, by OB PROJECT) |
Music |
| ECHIKUSO 7 (1995, by OB PROJECT) |
Music |
| I am Sorry 354 (1995, by OB PROJECT) |
Music |
| 354 Souls (2025, by OB PROJECT) |
Music |
| R System 3.6 (2026, by Syntax) |
Music (Bandana) |
