Batman vs. Deathstroke

Batman vs. Deathstroke is a fight between Batman and Deathstroke in Batman: Arkham Origins.

Background
On Christmas Eve, Deathstroke was hired to assassinate the infamous vigilante Batman, and secretly follows him into the Final Offer ship to do the job. As Batman interrogates the crime boss the Penguin, Deathstroke grapples Batman down into a brig where the two martial artists engage in a brutal fight.

The Fight
Deathstroke begins the fight with precise strikes with his bo-staff, condescendingly criticizing each and every one of Batman's moves like a strict teacher. Batman eventually overpowers Deathstroke with a brutal beatdown that knocks the mercenary's mask off. The fight continues as normal, until Batman delivers another beatdown and breaks the staff in half over his knee. Deathstroke unshealths his ninjato and begins striking with more power and strength, occasionally unholstering a laser-guided Desert Eagle to snipe Batman with and using his remote-claw to send propane tanks flying at Batman (that Batman can counter). While the player has full access to Batman's inventory, the only gadget move that'll really assist him in the battle is the Batclaw Slam. Gameplay-wise, the fight is all about perfect timing, as pressing the counter button on Deathstroke's attacks too soon or too late will fail. The fight is ended when Batman delivers a third and final beatdown that knocks Deathstroke unconscious.

Trivia

 * As said by the man himself, this fight is the most grueling and difficult physical task the Arkham Batman had to undergo in his entire life.