Gameplay is turn-based, with each team moving in a randomly determined sequence across two-dimensional terrain. During a single turn, a team can only move one of its worms. Worms can crawl and jump, as well as swing by ninja-rope, parachute, teleport, and bungee when the appropriate items are available. The objective of a traditional match or campaign mission is to defeat all opposing teams by killing their worms. Each worm begins the round with a specific amount of health which is predefined by the chosen game options or by scripting in campaign levels. When hit with a weapon, the worm will lose health depending on the power of the weapon and the directness of the hit. A worm can be killed either by having its health reduced to zero or being knocked into the water around and below the level.