Junk Yard

The Pinball by Williams Electronics Games, Inc.


Emulated in MAME ! Coin-Operated Pinball

Junk Yard © 1997 Williams Electronics Games, Incorporated.


Williams WPC-95
Model Number : 50052

Main CPU : Motorola M6809 (@ 2 MHz)
Sound CPU : ADSP2105 (@ 10 MHz)
Sound chip : DMA-driven DAC


Released in January 1997. 3,013 units were produced.

Sometimes when the crane hits the car targets, DOHO comes up on the display.

Crazy Bob is the owner of the Junkyard.


Revision 1.0
Date : 01/06/97
This is the first production release. Major changes since prototype 0.3 :
- A cooling-off period is now enforced for the bus diverter coil.This was to help prevent the coil from overheating.
- PAYBACK TIME was removed from the time machine feature. The scoring was out of balance with the rest of the game.
- Crane error detection was implemented.
- Overall, the scores on the game were reduced by half.
- Several sound and display timing issues were cleaned up.

Revision 1.1
Date : 01/23/97
- Wire colors will now be correct in SWITCH TEST.
- German printers will now format correctly.
- The spinner no longer can score erroneously.
- Added French and Spanish translations.
- Fixed Fireworks display and lamp show during Radar Adventure.

Revision 1.2
Date : 07/03/97
- German pricing updated.
- Escape from DOG will score correctly.


When the Time Machine clock shows 3:33, hit both flippers 3 times to start the Secret mode.

Push START button during Saucer Attack Wave to clear the screen.


Concept by : Barry Oursler, Dwight Sullivan, Adam Rhine
Design by : Barry Oursler, Dwight Sullivan
Art by : Paul Barker, Pat McMahon
Mechanics by : Zofia Bil, Brad Cornell
Music & Sounds by : Kurt Goebel
Software by : Dwight Sullivan, Graham West

Game's ROM.

Page last modified on November 15, 2011