In Catch the Mice players are hungry cats, trying to catch colored mice - but you probably already figured that out from the title.

On a turn, a player rolls the two dice, then "catches" a mouse of the color showing on the dice, assuming the player hasn't already collected that color this turn. If you roll the same color on both dice, you steal a mouse from your opponent! You may keep rolling but if you can't catch a mouse after a die roll, you lose everything. The game ends when there are no mice left, and points are scored for captured mice.