Quoted from shacklersrevenge:
Funny thing is, I almost did it the other day. I've always considered it a pretty unlikely completion, so never set out to do it. With that said, if you get into Portal, you have to make a lot of good shots right off the bat, because you have your ball saver. Once that is gone, you have to trap a ball on a flipper and make do with shots like that- I wouldn't have been able to do so without doing this. Keeping in mind also, that every what, 4 or 5 major shots in the same shot row adds a ball. The shots that will hang you up with be Gem and the one between the pops. I had gotten lucky and popped 3 -4 gem shots while in the beginning stages of Portal with several balls in play.
When I made the final shot, it was a quorra, and it's harder to hit when that wall is down. I had one trapped, and I tried a good 2-3 times before I smack it through, from there i took the trapped ball on the left flipper and sent it into the disk for the 25 million super, it was a great feeling.
I think I had this down at two posts, but you never can be too sure...so good thing for the third. Thanks for the tips!
I'm way ahead of the curve on this one, I read this was the way to score big and I took the glass of all my games. I still can't score good, so I am dubious of this suggestion.
On the plus side, last week one ball had so much spin on it coming off the disk it jumped clean off the table and hit lil' Billy17 right in the chops--dropped him like a sack of rocks. After he woke up he can now speak 8 foreign languages, so I guess it does work OK for some things...