I played Congo only once at the Wheeling Expo... Really enjoyed it... It stinks I was only like 2 million from a replay(I like to knock every machine I play on or try to knock it), and I figured I'd go back and knock it later... But, man... I never saw the machine open again the rest of the 12 hour day I was there... I was a little disappointed. As I know I could have had a better game once I learned how it bounced and behaved. I mean... One more shot was like practically all I needed to get the replay...
Anyway... I don't know if it's an A or B... But it shot well, had a lot of cool toys, and as I said it seemed really popular.