Here are the related switches for this. Try it and let us know.
Switch 20 - Novelty Mode
ON: Playfield Special and Extra Ball features award 50,000 points and 5 knocks. High score, high game to date, and match features disabled.
OFF: Normal game mode.
Note :Switch 20 overrides switch 21.
Switch 21 - Game Mode
ON: Extra Ball
OFF: Replay
Note: If switch 21 is ON, the high game to date and match awards are disabled.
Switch 22 - Playfield Special
ON: Awards Extra Ball
OFF: Awards Special.
Switch 31
ON - Liberal
OFF - Conservative
Switch 32
ON - Liberal
OFF - Conservative
Liberal-Conservative Adjustments
The two rightmost switches (31 & 32) on the control board allow liberal-conservative adjustments.
Switch 31 in the Conservative position turns off the Extra Ball target if lit when the descending red lights reaches the multipliers.
In the Liberal position, the Extra Ball target stays lit until the ball goes out, unless it is collected.
Switch 32 in the Liberal position scores one Special and lights the Special target when the drop targets are completed while the 1st row of red lights is lit.
In the conservative position, only the Special target lights.
Recommended settings are:
Switch 31 - Conservative
Switch 32 - Conservative.
Good luck!
- Sylvain.