Worms 4: Mayhem is a 3D artillery game, a form of strategy game, in the Worms series developed by Team17. It is much like its predecessor 3D, except that players can customize their worm's appearance (hats/helmets, glasses, facial hair, gloves/hands) as well as create their own unique weapons in an added feature called "The Weapon Factory". It also has a shop where users can buy various items, using points won by completing story missions, activities or unlocking trophies. Shop items include new maps, new accessories and attire, personality banks (voices) and game styles. There are several new weapons included in the new game including, Bubble Trouble, Icarus Potion, Poison Arrow, Sniper Rifle, Inflatable Scouser, Tail Nail and Starburst
