Quoted from DrStarkweather:The deadworld mod gave me so many problems I just took it off.
The Deadworld mod is the most overrated mod in all of pinball if you ask me. You can only use it with special home roms, which cripple the machine's ability to accept coins. I'm not a fan of ROM "upgrades" which take away game features. And the end result is no real change in gameplay. If anything, it's more challenging without the Deadworld mod.
IMO, JD with the Deadworld mod reduces the game's value.