The monitor in the Gauntlet was said to be bad (AND WAS! but that's another story) and they wern't sure about the KC. The KC was all locked and the plug was inside. Got back to the shop and drilled out the locks and....
It fired right up. It was very clean inside. Just a little dust.
These games were in a liquor store back in the 90s and they had been in the owners garage for years. They were covered with cig smoke and white paint specks. They both cleaned up great. I will post the "clean" pics in a bit.