My game keeps kicking two balls to the ball shooter. What's wrong?
The most likely reason for this is someone put too many balls in the game.
Count the balls, and include those hidden in obscure playfield areas to make
sure you don't have too many. Check your manual and perhaps the sticker
under the playfield glass lockdown bar for this information. Or, just try
removing a ball and see if the problem goes away.
This problem may also be caused by a ball trough (where the balls rest while
not being played) switch that is stuck closed.