| Name | Author |
|---|---|
| Ending | Bill Brown |
| Ntro | Bill Brown |
| Big Gun | Sonic Mayhem |
| Showdown | Sonic Mayhem |
| Quad Machine | Sonic Mayhem |
| Kill Ratio | Sonic Mayhem |
| Descent Into Cerberon | Sonic Mayhem |
| Ntro Score | Bill Brown |
| Rage | Sonic Mayhem |
| id Logo | Sonic Mayhem |
| March of the Stroggs | Sonic Mayhem |
| The Underworld | Sonic Mayhem |