Boomer the Zoomer Dino comes with a list of commands that you teach him and they're easy to learn. Even if you don't want to teach him, he is easy to move around. He charges with a USB cable - no extra batteries needed! Boomer wiggles his tail, roars and snaps his jaw but make no mistake: Boomer is a lot of fun and not at all scary! My family is having a blast playing with him! It's interactive T-Rex fun!