A) introduction:

Every system 1 game has a bookeeping feature where you can set highscore levels and make a simple self test. Most of the features are for the operators and not that interesting, if you play your game at home. Three push buttons will guide you through the bookeeping feature: The white big one at the back side of the coin door (that looks like a lamp switch for an old fridge), the credit or start switch on the coin door and finally you can use the reset switch on the MPU - yeah!!!

To start the bookeeping menue and begin with step 0, push the white fridge switch once. Push it twice to reach the next step and so on. To reset a value, use the reset switch on the MPU. To advance for example high score levels, use the credit or start switch. Each value is shown in the player displays. If you do not push a button within 60 seconds, the game returns into attract mode.