In the video, a person is playing a video game. The game appears to be a first-person shooter, with the player holding a gun and moving through various rooms and corridors. The player is shooting at other characters in the game, and the game's interface shows the player's health, ammunition, and other game-related information. The game environment is detailed and realistic, with various textures and colors. The player moves quickly and strategically, aiming and shooting at enemies.