This video shows a first-person shooter game where the player is holding a gun and walking through a corridor with walls on both sides. The player then encounters a group of enemies and starts shooting at them. The enemies are dressed in red and green outfits and are carrying weapons. The player continues to shoot at the enemies until they are all defeated. The corridor has a grey floor and walls with blue and yellow stripes. The gun the player is holding has a black handle and a silver barrel.