The monthly Pinball Arcade update brings a bonus game with it this time. While newer, shinier tables get added one-by-one, older mechanical ones tend to come as a double-pack. This month’s additions are both from 1977, which was the last year this type of pinball was made, and includes Centigrade 37 and Jacks Open. That latter one might be better known by its 1984 remake, Jacks to Open, which had a slicker art package, digital scoreboard for four players, and a non-mechanical bumper at t...