Collide-O!

Collide-O! is a fast-playing game in which players race to put down all of their cards by matching two colored sections of the card being played to either card at the end of the line. As each card is played, the possibilities of what can be played change, so being fast is important. Because of the multicolor sections on many cards, there are numerous combinations, so flipping your cards over to check whether either side can match is advantageous.