The ability to change the score required to win a game replay was one ploy adopted by pinball machine manufacturers in an effort to compete with the ever increasing challenge offered by video games.
All pinball machines offer a replay to a player who beats some specified score. Pre-1986, the replay score was hard wired into the game unless the operator manually re-programmed the software. High Speed changed all that. It was pre-loaded with an algorithm that adjusted the replay score according to the distribution of scores on the specified machine over a specific time interval.
It’s been a few years since I lasted played on a pinball machine, so I’m hardly an expert in the field, but the Internet Pinball Database looks pretty extensive to me.
The database is constantly expanding, but currently includes 37,590 images of 5,065 games and 3,111 other game related files, as well as links to other pinball websites, all arranged by machine. The database also includes pitch & bat baseball games, cocktail table machines, bingos, and payout machines, when they have a pinball theme. It may also include information on some obscure games that are not pinball machines but sometimes are confused as them.