LeapFrog Leapster Learning Game Cars Supercharged Answer reading and spelling questions to tune up for the Radiator Springs Invitational Race! Zip around cacti and tumbleweeds as you bump the cars with the right plural ending. Catch up to Mack by honking at motor homes with the right letters. There are lots of obstacles to overcome when driving through the forest, but you can put your car on the fast track by choosing the correct answer. Kids connect online for extra activities and rewards. Parents can connect online to the LeapFrog Learning Path to see what their child is learning.