This is a video of a t-rex attacking the American Ninja Warrior obstacle course (possibly this guy, previously seen training). He does surprisingly well for a dinosaur with such small arms and poor upper body strength, but eventually fails on the obstacle seen above. He still runs up the wall at the end though just to prove he can. Congratulations, Mr. Rex, here's a purple participation ribbon -- you've earned it. "Take it out of your pants." I'm sorry but the judges insisted this is the way I do it.
Keep going for the video, then let's start ninja training in the woods behind my parent's house. Bring a grappling hook and plenty of throwing stars.
Thanks to everyone who sent this, who know what I like. In this case, ninjas pretending to be dinosaurs.