The Linkimals™ Happy Shapes Hedgehog™ is packed with exciting play that grows along with your baby! Younger babies can spin, turn, toggle, and bat the activities on their buddy's back, or press the light-up buttons to hear songs and phrases about colors, shapes, and numbers. Then older babies can push or pull the hedgehog along for more fun music and sounds. Plus, when Happy Shapes Hedgehog™ recognizes other Linkimals™ friends, they create a synchronized music and light show! (Additional Linkimals™ toys sold separately.)