My Galaga board has mostly X's for text, the ship is upside down and shoots bullets out of it's ass, and the ships for extra lives has an odd sprite. Game works 100%. Starfield looks good, sounds are good, plays just fine. I have removed and cleaned all socketed chips. I have a parts board I can steal from. What chips are the most likely culprits? I don't want to do them all one at a time and see what happens.
