Ep 4. Gun Gale Online

Kirito is back in action again, but this time he is not in his usual world of gaming. He has entered the world of Gun Gale Online, which is known for its deadly PvP battles. As he enters this world, he takes on the avatar of a female player named Sinon, who is a skilled sniper.

Kirito has entered the world of Gun Gale Online to investigate a mysterious avatar known as "Death Gun." The avatar has the ability to kill not only players in the game, but also their real-life counterparts through a mysterious process. Kirito is determined to find out who Death Gun is and put an end to his reign of terror.

As Kirito meets up with Sinon, she takes him the tournament grounds where they observe the elite players dueling. From the stands, they both see one of the players named Pale Rider using a unique weapon, which Kirito suspects may be related to Death Gun.

The key players of this episode are Kirito and Sinon. Kirito is trying to uncover the identity of Death Gun while Sinon is on a mission to win the BoB (Bullet of Bullet) tournament, the biggest PvP event in GGO. Kirito also manages to reveal some personal history which makes the episode interesting.

As the episode progresses, Kirito and Sinon encounter Death Gun, but they are not able to defeat him as he has a mysterious ability that seems to give him an edge over them. Their only hope is to gather more information and prepare for the upcoming fight.

The animation and the visuals in this episode are quite spectacular and well executed. The fight scenes are exceptionally well choreographed which makes for a great viewing experience. The soundtrack accompanying the animation is also noteworthy and sets the mood of the scene. The episode is beautifully crafted and well paced to keep the audience engaged.

Gun Gale Online is an interesting world with its own set of rules and mechanics. It is quite different from the other worlds that Kirito has visited in the past and the way the story is shaping up gives the impression that the stakes are quite high. The show continues to be gripping and intriguing, and this episode is no exception. It leaves the audience wanting for more.

Overall, Sword Art Online season 2 episode 4, Gun Gale Online, is a fantastic episode that is a must-watch for the fans of the series. It has a great combination of action, mystery and drama that will keep you engaged throughout. The animation and soundtrack are excellent and add to the overall experience. The episode sets up the stage for the upcoming fight with Death Gun and ends with a cliffhanger that will leave the audience on the edge of their seat.