"Arena" is a marvellous episode. Kirk really had to rely upon his own wits in order to survive by himself on that barren planet. His rather large Reptilian opponent isn't the most frightening character you will encounter and about as quick as Pat Morita in "The Karate Kid" during the fight scenes. Kirk's blows are somewhat tame as well. It's a case of brains being the winner in this one.
Hugely entertaining and opens with quite a harrowing opening scene.
Review of Arena
