Noteworthy features

• The "Earthshaker Institute", with nine lights showing all the zones you have visited.
• Splitting California/Nevada ramp diverter.
• The "Earthshaker Institute", the building in the back with the lit numbers 1-9 on it, was originally designed to move above and below the playfield. Due to the cost-reduction process, this motor assembly was left out and only the first 200 machines were produced with a "sinking building".

Trivia

• Earthshaker is the first game to use a "shaker motor". Williams unfortunately never got down to registering a patent for the motor. The result was the widespread use of shaker motors in various pinball machines for then-rival Data East.
• Earthshaker is the first game with a "family" game ROM. This was done so that a word deemed offensive in the 1980's - "Bitchin'!", could be removed.
• About the first hundred games had a moving number square. It cost too much so they removed it from all other games.

Backbox ornament(s)

None

Video mode

This machine has no dot matrix or video display, so it has no videmode.