The video shows a gameplay sequence from a 2D side-scrolling game. The player character, a small black figure with a top hat, is seen fighting against various enemies in a dark, dungeon-like environment. The enemies include a large skull with sharp teeth and a smaller red creature with a single eye. The player uses a weapon to attack the enemies, causing them to explode into red splatters. The game's HUD is visible, showing the player's health, ammo count, and other game-related information. The video is fast-paced, with the player swiftly moving through the environment and engaging in combat.