Mindwarp (1992)
aka Brain Slasher
Dir. Steve Barnett
I suspect the reason there's a sliver of Ash in most of Bruce Campbell's characters is because there's a lot of Bruce's own personality in Ash.
He maybe accentuates certain traits, but they spring from something real. Furthermore, if he's one of the main stars of a film, then there's a good chance he'll be facing off against some kind of evil creature. Mindwarp is no different.
It goes for a 70s style version of the 21st century, which is something that I really like; the poor-man's pre-Matrix (1992) VGA port in the back of the neck was hilarious.
The synthetic world that the female protagonist (Marta Martin) wants to escape is kind of similar, too, but the remainder of the film isn't.
Much of it is set underground where the lighting is bad, but on the plus side it helps hide budget limitations and makes sense because underground is where the aforementioned evil lives.