Was there ever any game that was played on a vertical cocktail machine and was head to head? There was a cocktail warlords that was 4 players, one at each corner, but was there ever just a 2 player game, maybe something like pong, where you each played each other but at the same time?
All the cocktail games I remember were just stand up games, but ported to a cocktail machine. It would be cool if someone had actually written a game to play to a cocktail machines strengths.