Mission: Cross the Laser Field Before it’s Too Late. Carefully maneuver through the laser field without touching the string. If you touch a wire, the time bomb will tick down faster! Hurry to defuse the bomb and save the day!Chrono Bomb!: Mission: Cross the laser field before it’s too late Chrono Bomb is a super secret spy mission where kids use the included clamps at 27.5′ string to create a “laser” field to crawl through At the end of the maze is the bomb, counting down So, you have to hurry, carefully, and make it to the end to defuse the bomb and be the hero Play over and over again, building new courses each time or trying to bear your or your friend’s time Use the free app to receive extra missions to complete Requires 3 AA batteries (not included) Contents include: 10 cards (8 gear cards and 2 mission cards), 4 standard clamps, reel clamp, sensor clamp, sensor, bomb, rules