Just had a quick check of the Game Over relay before heading to work. It pulls in, but the plastic piece at the back of the coil with the two solder points on it seems to have snapped in half and it's all wobbly. Might be time for a brand new coil and also clean the contacts?
That's only the connection to the coil and so long as the wire is still soldered on to the 2 lugs, the coil will function OK... you need to check the contacts with your DMM and make sure that when they are open, they are open and closed when closed
