This game came in not playing. It looked clean on the outside but inside there was some corrosion on the contacts so I re-tinned them, but still not working, so I tested each contact tracing it and one contact was dead and I found it's trace on the pcb was cut. So I covered the cut and made my own wire trace to where it was supposed to go and it works!
Got a game not working, come see me: DrGAKMAN!