Quoted from metallik:I actually rolled a BK2K (>100M) way back in the day before I had any real pinball skills, just because I figured out that strategy. The feed from the UPF was easy to trap, so I played probably the most boring hour-long game of pinball ever played. Nothing but left ramps and W-A-R hurryups over and over, with the occasional lightning wheel shot when I biffed the ramp. I did not play any of the replays, nor did I touch BK2K for months afterward...
I loved BK2K as a kid. When I got back into pinball as an adult, I realized the same strat while playing on location. Wasn't as exploitable as playing for an hour straight for me but it definitely bumped it off of games I'd love to own. Gottlieb Gladiators also has a similar-ish exploit with MB.