Pro Pinball Timeshock! 10,594,097,870 points (PC, 1997)

Played with default factory settings.

I think it is my best game to this day. I did a lot of mistakes all the way (wasted 3 or 4 balls on a single exploration for instance, and always failing video mode level 3) but managed to reach "the dawn of time" and then "the end of the time" nonetheless.
The first time I reached "the dawn of time" I was in panic since I wasn't really prepared to it, so I failed to save the universe. The second try went more smoothly.
I was very tense when I then had to reach "the end of time": it was my last ball so no mistake was allowed. Hopefully I locked the three balls successfully.

For a FAQ, I would recommend Tarek's at Gamefaqs, it has good advice on scoring techniques.

The highest scores to this day are around 80B, see http://www.tmt.at/ante/scores.phtml for a complete list.

Recorded in 1024*768@60fps using FRAPS, converted to 30fps and upscaled to 1280*720 (with vertical black strips) to prevent Youtube from horribly resizing the video, and encoded with Anri-chan (Speeddemosarchive recording tool).

EDIT : if you are reading this before October 4 (2012), you can help Silverball Studios creating a remake of this game and a brand new table.
See their kickstarter at http://www.kickstarter.com/projects/1790321238/pro-pinball-revived-and-remastered
EDIT 2: As of August 19, 2013, Barnstorm Games have a new Kickstarter going (26 days left !)

Видео Pro Pinball Timeshock! 10,594,097,870 points (PC, 1997) канала Kae De