Quoted from isJ:Get three multiballs at once.. then.. do it again? In comparison to both of the Sterns he listed, BSD is indeed very shallow / a one trick pony.
The word "shallow" in a vacuum doesn't mean anything. Good design coupled with good rules = good game. When you're having fun, you're having fun....buzzwords don't factor.
BSD is simple to understand, difficult to master...but extremely fun and extremely well made. Excellent music, callouts, light shows that really bring you into the theme. Mist ball is an amazing feature that always wows.
It's a bonafide classic. Comparing it to modern math-chess games don't diminish how great it is.
I love Metallica, too...but I love the Prem/LE version - so I voted BSD.