All aboard with Puppy, Monkey and Froggy, and more than 50 learning songs, tunes and phrases! Press the light-up smokestack for exciting motorized train action and to hear learning songs. Or place Puppy in the conductor's seat to learn about opposites. Five shape buttons introduce colors, numbers and more. Puppy's Smart Train includes Smart Stages learning, an exciting new technology that lets you change the learning as baby grows. Every baby develops at their own pace, and Smart Stages gives you the ability to select the stage that's best for your child! There are a variety of developmentally appropriate songs, phrases and sounds within three levels of play - just slide the switch!