When Keanu Reeves trains for a movie role, he takes it seriously—and his preparation for John Wick: Chapter 2 was no different.

As the Hollywood star prepared to once again play the expert assassin with a love for dogs, he immersed himself in martial arts work, fight choreography, and plenty of gun training. And by the looks of it, Reeves might’ve been ready to become an actual assassin.

Shooting instructor and tactical expert Taran Butler helped teach Reeves all he needed to know to shoot a vast arsenal of weaponry. Whenever you see Reeves kicking ass in John Wick, it’s (mostly) him doing the stunt work:

Here’s another video of Reeves doing his training, intercut with some action from the movie:

John Wick: Chapter 2, directed by Chad Stahelski and starring Reeves, Laurence Fishburne, Lance Reddick, Ian McShane, and Ruby Rose, is in theaters now.