Repaired the already installed credit adder button. Can now push button to add credits. Exhibits weird behavior still where the amount of credits is limited to 1, but you can start a 4 player game if you push start, add credit, push start, etc. Also we should increase the replay score with the dip switches now that we have this functioning.

While trying to figure out how to set to free play, I played a bunch of games in a row and it was either matching for a credit or recognized a high score after every single game. No matter what the score was, it gives out a free credit after every game. May be a problem that gets resolved when game is set to free play, but it was odd behavior