-Drive into a 2-in-1 dino race-car world with a T-Rex that easily transforms into a race car -Add T-Rex roars, awesome engine sounds and flashing lights with the push of a button to rev up kids' imagination -Crack open the egg to find all the pieces needed to build a dinosaur racer; may require adult assembly -Create a Switch and Go world, then race or challenge other Hatch and Roaaar Egg creatures (sold separately) -Intended for ages 4+ years; requires 1 AAA battery; battery included for demo purposes only; new battery recommended for regular use; may require adult assembly