Jason narrowed his dark golden eyes in determination, a smirk appearing on his lips as he flexed his lean, muscular form at the angry, 12 foot tall bear. It was obviously mutated, or a monster, or something, but the boy didn't really see that as a reason for not fighting it.
"It's for the exercise, Ruth." He whispered, just as the large bear leaped out of the open cage and lunged on top of the significantly smaller teenager. Jason grunted, grabbing the over-sized paws just before they could slam into his face. Keeping a steel-like grip on the paws, the teenager pressed his cowboy boots into the bear's mid-section, growling as he pressed upwards with his feet, the kick sending the bear flying at least 10 feet into the air, where it roared as it fell back down.
It landed, with a crash, on it's feet, before lunging forward once more, with Jason lunging to meet it. The bear threw a dynamic punch, and Jason twisted on his feet like a feral warrior, ducking underneath the slow haymaker and launching a sharp, strong jab at it's armpit, causing it to roar in pain. As it knelt over from the blow, Jason kneed it in the face and leaped over it's shoulder, just as it snapped it's jaws at his previous position. Behind the bear, the werewolf wrapped two muscular arms around it's stomach and flipped backwards, executing a perfect German Suplex that slammed the bear, and Jason, through the rows of thick wooden logs, creating a loud crash and a dust bubble of sand, dirt, and wood-chips.
"...Wooh!" Jason smirked, crawling from the rubble and dragging the beaten bear behind him, by it's paw.