The video shows a person playing a game on a smartphone. The game appears to be a side-scrolling platformer with a character that the player controls. The character is seen jumping over obstacles and shooting at enemies. The game's graphics are colorful and cartoonish, with a dark background and brightly colored characters and objects. The player's thumbs are visible on the screen, controlling the character's movements. The gameplay is fast-paced and action-packed, with the character moving quickly through the level.