ThinkFun - Roller Coaster ChallengeHelps Develop Kids Logical Thinking Skills While Solving Fun Challenges and, oh! theres also a Roller Coaster! Roller Coaster Challenge is our follow up to Gravity Maze, a hugely popular combination of a marble run and a logic game. Players set up the board based on the instructions on the challenge card, and determine where to place the remaining pieces if you build a functioning roller coaster that connects the start to the finish, you win! The game