? Guys...it's like a freakin' moratorium in here...
In Activisions (and Atari's) final days of developing software for the 2600, with a game like say, Ghostbusters 2, the systems viability (potential sales) in the US was below that of the international market, whereby making it more probable that PAL development of games was further along and more the focus then NTSC.
This game is from 1983. It CRYSTAL CLEARLY predates the glory days of Activisions software development; especially its end of days era. So to assume that this PAL cart was the only "finished" version of the game is NONSENSICAL. An exact or more likely even MORE complete NTSC version exists out there.
J. H. C. I've never seen such a pathetic display of a pity party in my life around this place, and over what?! A game we already have!
Dude, lay off the hard drugs. And the caps lock key.
Activision was a US based development house. They did all their game development in the US. They wouldn't bother with a PAL conversion until after the NTSC version was finished. It's simple logic. That PAL version is 99% most likely the final version of the game (there could always be an exception).
The real question is why didn't they release it? It was finished and the date wasn't too late. Maybe it didn't playtest well or something?