LeapFrog Leapster Explorer Learning Game: Disney Pixar Up Teaches early number sense, addition, subtraction, more than / less than, sorting and classifying, spatial relationships, shapes and animals Use your number recognition skills to steer Carl's house past storm clouds and flocks of birds on the journey toward Paradise Falls. Help Carl, Russell and Kevin dodge dangerous dogs by solving addition and subtraction problems. Unlock clues and search Muntz's blimp to rescue Kevin before time runs out! Features expanded play for the Leapster2 system, so Leapster2 players can connect online for extra games, activities and rewards, and parents can connect online to the LeapFrog Learning Path to see what their child is playing and learning