In this colorful sequencing game, players race to build rainbows as fast as they can and be the first to play all of their cards. It's a little bit co-hoperation, and little bit competition, and a whole lot of chaos. Kids love it. Adults love it. Kids love always winning against the adults. Adults don't love that part as much. Feeling skeptical? Fact: even the most cynical player will yell “Red! Orange! Yellow! Green! Blue! Indigo! VIOLET!” by the end of the the first round.