I thought i read somewere that you could use a few different game pcb as a replacement for the umk3 pcb with just chip replacement and no mods. I think one was nba hangtime but cant remember the others. Is this correct or am i wrong?
UMK3's PCB is a "Wolf Unit" board. There are several games that use them. Not sure about NBA Hangtime, but I know for a fact that WWF Wrestlemania is an identical board. Simply a rom/security chip/revision chip swapout is all that's necessary.
did a quick serch of wolf boards and came up with this list
Mortal Kombat 3
Ultimate Mortal Kombat 3
NBA Hangtime
Rampage World Tour
NHL: 2-on-2 Open Ice Challenge
WWF: WrestleMania
Maximum NBA Hangtime
Rampage World Tour and NBA Hangtime / Maximum Hangtime seem to be fairly tough to find. I've been looking for both for a little bit (hangtime longer than rampage).
funny thing about the Hangtime/Maximum Hangtime (atleast the one my buddy has), is that the CMOS screen doesn't say that it's a wolf unit (unlike MK3).