Black Hole
OPDBGottlieb1981
2 editions of one title, held as separate machines because their playfields differ.
Black Hole (rev. 4)
1981 · 3 ROMs
Black Hole (Sound Only)
1981 · 2 ROMs
What differs, by the numbers
0 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 | Black Hole (rev. 4) | Black Hole (Sound Only) |
|---|
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.