Midnight is monster time, and the fun begins at 12 o'clock sharp when the cheeky guys come out of their hiding places. Time to catch them as quickly as you can!
On your turn in Monster 12, you roll dice to try to match monsters because you can take only the three dice that match the color of the monsters on the face-up cards. If you reach the value of the respective monster, then you place the dice on it, and whoever first catches twelve monsters of different colors wins.