"Expo" is a two-player electro-mechanical pinball machine released by Williams Electronic Manufacturing Company in October 1969. Designed by Norm Clark, with artwork by Christian Marche, the game features two flippers, five pop bumpers, two slingshots, three standup targets, and a kick-out hole.
"Roto" is a two-player electro-mechanical pinball machine also released by Williams in October 1969. The game operates as an add-a-ball machine, allowing players to earn additional balls instead of replays.
