The video shows a person holding a smartphone and playing a game on it. The game appears to be a side-scrolling action game with a character running through a level, shooting at enemies. The character is seen shooting at enemies and avoiding obstacles. The game's graphics are colorful and cartoonish, with the character and enemies rendered in 3D. The gameplay seems to be fast-paced, with the character moving quickly through the level. The phone's screen is visible in the video, showing the game's controls and the score.