LGR Blerbs | Sound & Input Quirks on a 1994 Primal Rage Arcade PCB @LGRBlerbs | Uploaded February 2020 | Updated October 2024, 1 day ago.
Atari's classic Mortal Dinosaur Kombat game from 1994 has some strangeness going on, especially when playing at home using a Supergun. It uses the JAMMA standard, but also doesn't? Let's go over the additional cables and adapters you may need to get sound, music, and all four buttons for full fighting controls.

Sound board cables:
ebay.com/itm/Primal-Rage-Arcade-PCB-Mono-Audio-Cable/202636473455

JNX Rage v1.2 JAMMA adapter:
jamma-nation-x.com/jammax/store.html

Parsec v2.1 supergun for JAMMA I/O:
tindie.com/products/low_budget/parsec-supergun-v21-play-jamma-arcade-games

OSSC for converting to HDMI:
videogameperfection.com/products/open-source-scan-converter