Add/Enable Free Play
1 Introduction
Most modern game systems have a free play option available within the game's settings. However, older games do not always have an obvious way to enable free play.
There are a few different options depending on the game system:
- Add a stacked switch added to the start/credit button switch.
- Add a switch to the coin reject button.
- System-specific wiring modifications.
- Replace the game ROM with an EPROM with a modified version of the game code.
- Set the first replay score value to 10,000.
The goal is avoid having to install an extra on the outside of the cabinet or coin door and to avoid having to open the coin door.
2 Game Systems
2.1 Allied Leisure
2.1.1 Generation 1
2.1.2 Generatoin 2/3
2.2 Atari
2.2.1 Generation 1
No game-specific free play options available.
2.2.2 Generation 2
The MPU dip switch in switch section A, switch 8 will enable free play when set to "on".
2.3 Bally
2.3.1 -17/-35 MPU
2.3.2 Hybrid Games (-133 MPU)
On the MPU, setting dip switch 30 to "on" enables free play mode.
2.3.3 6803 MPU
2.4 Capcom
A free play option is built into the game code.
2.5 Chicago Coin
2.6 Data East
2.7 GamePlan
2.8 Gottlieb
2.8.1 System 1
2.9 =System 80/80A/80B
[Here]
2.9.1 System 3
A free play option is built into the game code.
2.10 Heighway Pinball
A free play option is built into the game code.
2.11 Jersey Jack Pinball
A free play option is built into the game code.
2.12 Sega
2.13 Spooky Pinball
A free play option is built into the game code.
2.14 Stern
2.14.1 MPU-100
2.14.2 MPU-200
2.15 Williams
2.15.1 System 3-7
In the bookkeeping settings, setting the maximum credits to zero usually allows free play.
2.15.2 System 9-11
In the bookkeeping settings, setting the maximum credits to zero usually allows free play.
2.15.3 WPC
A free play option is built into the game code.
2.16 Zaccaria
2.16.1 8060 MPU
2.16.2 Generation 1
Modified game ROMs that enable free play are available here.
2.16.3 Generation 2
Modified game ROMs that enable free play are available here.