Collide-O! is a fast playing game where players race to put down all of their cards by matching two colored sections of the card to the ends of ones that are in a line on a table. As each card is played, the ends change, so being fast is very important. Because of the color ways on each card, there are numerous combinations - so flipping your cards over to check if either side matches is very advantageous.This game is quick and fun, and as it is by designer Maureen Hiron, it is sure to contend with the 'speedy' games out there. - BoardGameGeek