Ice Duo is actually two complete games in one box: Ice Dice and Twin Win. Ice Dice is a press-your-luck game that was specifically designed to be an introductory game for the pyramids. It features a special pair of dice designed for this game but useful now for many others. Twin Win is a quick little hidden-goal game that has turned out to be the sleeper hit of games in Pyramid Arcade. The Ice Duo set contains 2 trios each of five colors (red, yellow, green, cyan, and purple).