This All-Out Attack Tyrannosaurus rex gives rampage attack and 'evolved for battle' features to the most iconic species of them all. This action figure's rampage attack is a dramatic up and down neck thrash, along with chomp action and roar sounds. The faster the button is pressed, the bigger the roars and chomps This T-rex is also 'evolved for battle' with teeth that grow to almost 2 times their size Scan the hidden Tracking Code in the free Jurassic World Play App with a compatible smart device Android or iOS, not included to unlock a digital version of the dinosaur and access to fiercely fun games Colors and decorations may vary.