Smart driver,you shift the cars to escape the gridlock!Fun for kids and adults alike!40 challenge cards,great for travel.40 puzzle challenge cards.This is an interesting game to challenge your contin uousi de ation and patience.There are 40 game cards in total which can de divided into 4 levels:junior. Intermediate,senior and professional.Troublesome trucks(that's more of them),aggravation autos(cnat's them),40 beginner to expert challenge cards for ages 4 & up,one fancy "x" cars(that's you),big 6x6 traffic grid,only exit.