In the video, a person is holding a smartphone and playing a game on it. The game appears to be a side-scrolling platformer with pixelated graphics. The player controls a character that moves through various levels, collecting items and avoiding obstacles. The game's interface includes a pause button, a restart button, and a score counter at the top of the screen. The player's thumbs are visible, and they are actively tapping and swiping on the screen to control the character's movements. The background is a solid color, and there are no other objects or people in the frame.