Instructions
Travel to El Matadero, Plainview or the Pacific Union R.R. Camp. Approach the arm wrestling table to begin the mini-game.
Press the "A" button on your controller repeatedly to use your strength to push your opponent's arm down. Release the "A" button to replenish your strength. Keep an eye on your strength meter; once it is fully depleted you cannot push back against your opponent, leaving yourself open to attack.
Watch your opponent for signs of weakness. When he appears winded take the opportunity to tap the "A" button to push down on his arm with greater effectiveness.