Alex Upton sent along this great ad for the Phantom console system. The only thing that says Ghostbusters is the cartridge. The one, small, blurry shot of the screen shows what looks like a port of David Crane’s original game, but the kid is using a lightgun. So, I’m lost. If anyone is familiar with the system and version of the game, please let me know. Otherwise, have a good laugh. Run, kids! Run!
[UPDATE] I did a little searching, and the Phantom System is essentially a NES, officially licensed from Nintendo, and produced around 1990 by Gradiente (as you can see at the end of the commercial.) While the company did sell unlicensed games, Ghostbusters was licensed from Activision. So, there you go.