PRODUCED: October, 1980
For several Williams games (especially before 1987), Speech Processing was a separate task than Software Programming and may have been done by a different person than whom we list as having done the Software. Paul Dussault did the Speech Processing for this game.
System 6A is a System 6 board without IC9 and IC10 and provides for 7-digit score displays.
The prototype game pictured here has serial number 437878 stamped in the wood below the coin door. Its playfield plastics are all contoured, not flat, and have the part number on each. All three kick-out holes are yellow plastic, like the game in the flyer. Missing from the playfield are the name of the game and the copyright. This information is printed on production games near the drop target inserts. The game in the flyer is also missing this printing.