In the video, a person is playing a video game on a mobile device. The game appears to be a first-person shooter, with the player holding a gun and shooting at enemies. The player moves around the game environment, which includes buildings and streets. The game graphics are colorful and detailed, with the player's gun and enemies being the main focus. The player successfully shoots and eliminates several enemies, as indicated by the on-screen text and sound effects. The game appears to be fast-paced and action-packed, with the player moving quickly and strategically to avoid being hit by enemy fire.