From the publisher: "A simple two-player game where you flip over diamond-shaped cards.
When a butterfly flies by, roll the dice. Will there be a big reversal? Will you be the one to get the big reversal?
Choro comes from the Japanese word chorotto, which means a little. Creatures are chorotto peeking out from the holes on diamond-shaped cards. The rules of the game are simple, like Reversi. But when butterflies flutter into the game, everything changes!"
Rocca Choro is like a card-based kid's version of Othello that adds randomness through Special Cards (which cannot normally be fliped to the other color) and Chance Cards (which depending on a die roll will allow one player a free flip of one of their opponent's cards). Includes one six-sided die.
—description from the publisher