There is a documented option available that changes the layout of the playfield.  Pin 6 of the IC at grid location D9 is tied to +5v (with a 4.7k pull-up resistor and ground (picture #1).  Cutting the ground trace causes address bit to be pulled high, selecting the alternate playfield data (picture #2).  A jumper can be installed to easily switch back and forth between both playfields.  The alternate playfield version of the game was released as Tank II.  This is the same playfield that appears on Fun Games' Tankers flyer (picture #3).




Return to main menu