I bet some of the people that are saying the game works for them are not running the game in JVS link at all.
JVS linking means daisy chaining two JVS IO boards. 1P controls are connected to IO board #1, 2P controls to IO board #2. It's only really practical if you have two cabs.
JVS linking means daisy chaining two JVS IO boards. 1P controls are connected to IO board #1, 2P controls to IO board #2. It's only really practical if you have two cabs.