An athlete wearing a Tyrannosaurus Rex costume dominated the first few obstacles of the American Ninja Warrior course in Atlanta, breezing past the Block Run before falling in the middle of the Spin Cycle. It's an especially tough test with those little dinosaur arms.

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You may recognise the king of the dinosaurs from his incredible Jurassic Parkour training video that went viral earlier this year. The man inside the costume is Reko Rivera.