Dinosaur Train Interaction Roar 'N React Boris Tyrannosaurus Exclusive Bonus Pack. Learning Curve, Dinosaur Train..InterAction Roar N React Boris Tyrannosaurus. PBSKids! Over 150 Dino Sounds and Phrases. InterAction Dinosaurs talk to each other! Ultimate T.Rex Set with Boris, Buddy & Tiny. Experience Dinosaur Action Boris and Buddy and Tiny are action packed with cool features for hours of dinosaur fun! Set with Boris, Buddy & Tiny.