John Romero's very own unofficial Episode 5 for the first game, Sigil, gives players a choice between a MIDI soundtrack by James Paddock and a full-on heavy metal OST by Buckethead.
James Paddock
- If you go for the Paddock music, the very first level sets your ass ablaze and gets you rearing for all new demon-slaying action with "Hate Machine", a rip-roaring dark metal piece designed to start your adventure in Sigil off with a bang.
Buckethead
- Romero One Mind Any Weapon is a headbanger which melody acts as a bridge to other parts of the song, like a chorus.
- The Patrolman gives the feel where Doomguy's been around fighting the demons long enough that it's a chill routine and it's just another day of demon slaying.
- Fastpass... haunting... beautiful... timeless.