What is topsy-turvy creature? Nobody will really know except your child who will love playing with Oogly Googly G a real fun award-winning gears building set.Any crazy looking creature can be designed with 100 colorful plastic pieces included in this unique construction toy. Your child will have so much fun putting together jiggly eyeballs, antennae, creepy claws, flexible spring connectors and more to bring to life his (her) one-of-a-kind moving creature. The set includes color-coded building model ideas. This creative construction set is compatible with any other Gears! Gears! Gears! building toys. Requires 2 AA batteries, not included.