Build a super cool marble racetrack using the comprehensive building instructions and 73 colorful pieces, or let your imagination run wild and build your own marble run. Place the marbles in the electronic launcher, then flip the flag back to launch the marbles and start the race. Let the marbles race and watch them race down the track, through the halfpipe, and into the obstacle platform. Which marble reaches the bottom first? The launcher will bring the marbles back into action on the track. Can you and your friends or family make the marbles roll through the 360-degree loop? The cool light and sound effects add even more fun! Includes 5 marbles.