1. He's Rocky.
  2. It's so fun to yell "Rocky, Rocky, ...."
  3. He has the coolest music to train with.
  4. His face is made of silicone putty.
  5. He's also Rambo undercover.
  6. He runs faster than black guys on the beach.
  7. The fight music always climaxes when he is winning (extra motivation).
  8. Eye of the tiger.