
Earthshaker! © 1989 Williams Electronics Games, Incorporated.
Williams System 11B
Model Number : 568
Main CPU : M6808 (@ 1 MHz)
Sound CPU : Motorola M6809 (@ 2 MHz), OKI M6808 (@ 1 MHz)
Sound chips : Yamaha YM2151 (@ 3.579545 MHz), (2x) DAC, (2x) HC55516

* The following voices are heard during the game (M for male and F for female)...
"It's sunny drive time!" [M] : starting a game.
"They've locked on with all the hits." [M] : completing the building.
"EARTHSHAKER!!!" [M] : locking a ball for Multiball.
"Take a scenic fault drive today." [M] : starting Multiball.
"Check out the fault today." [M] : enabling the fault for Jackpot.
"Head for the shelter!" [M] : during timer for Aftershock.
"Ooh, give me shelter!" [F] : during timer for Aftershock.
"Ooh, bitchin'!" [F] : receiving or starting an extra ball, or when you receive a match at Game Over.
"Ooh, million!" [F] : million shot enabled.
"M-M-M-Million!" [F] : million shot awarded.
"Ooh, Jackpot!" [F] : jackpot enabled.
"J-J-J-Jackpot!" [F] : jackpot awarded.
| All bumpers (none lit) | 1,000 points. |
| Red bumper (red lit) | 2,000 points. |
| Blue bumper (red and blue lit) | 2,000 points. |
| Yellow bumper (all lit) | 2,000 points. |
| Red bumper (red blinks) | 3,000 points. |
| Blue bumper (red and blue blink) | 3,000 points. |
| All bumpers (all blink) | 5,000 points. |
| Captive Ball | 25K, 50K, 100K, 150K, or 250K |
| Center ramp | 25K, 50K, 60K, 70K, 80K, 90K, 100K, or 200K |
| Drop targets | 50K, 60K, 70K, 80K, 90K, or 100K |
| Fault trip | 50K (normal) or 250K (Multiball) |
| Jackpot | 500K/Special, 1M, 1.25M, 1.5M, 1.5M/Extra Ball, 2M, or 2.5M |
| Loop | 20K (normal) or 100K (Jet Bumpers) |
| Outlane | 50K |
| Return lane | 5000 |
| Skill shot | 10K, 25K, 50K, or 100K |
| Slingshot | 110 |
| Spinner | 1000/revolution (unlit) or 3000/revolution (lit) |
| Stand-up | 25K (unlit) or 40K (lit) |
| 50K Stand-up | 25K (unlit) or 50K (lit) |
| Zone (lit) | 40K |