From the publisher's website:

"Based on an ancient Chinese Mahjong game, race to dismantle 136 colorful and uniquely designed tiles by matching identical pairs as fast as you can. The more quickly you make matches, the more points you earn!"

The action is simultaneous and frantic. Players quickly pull matching tile pairs from among the free outside edge. (Some tiles are deceptively similar without actually matching!) The player or team with the most pairs wins.

Publisher website:

http://simplyfun.com/products/turtlemania