Blackout
OPDBWilliams1980–1982
2 editions of one title, held as separate machines because their playfields differ.
Base
1980 · 6 ROMs
- 25
- switches
- 5
- coils
Black Hole
1982 · 2 ROMs
What differs, by the numbers
2 of the compared properties differ. Counted from each edition's own definition, so this holds whether or not anyone has written the differences down.
| Property | Base | Black Hole |
|---|---|---|
| Switches | 25 | 0 |
| Coils | 5 | 0 |
Counts come from each edition's own definition. A zero means the definition records none — for a stub or partial edition that may mean nobody has described it yet rather than that the machine lacks it.