|Damage||N/A (Poisons the worm, draining its HP between turns)|
|Appears in||Worms 3D, Worms 4: Mayhem, and Worms: Ultimate Mayhem|
The Gas Canister is a poisonous thrown weapon introduced in Worms 3D, and reappears in Worms 4: Mayhem and Worms: Ultimate Mayhem. It consists of an orange, rough, spherical orb with small canisters protruding from its surface. Like the grenade, it's a thrown weapon and the fuse timer can be set by the player, from 1 to 5 seconds (however, in the PC version of all 3 games, the fuse timer cannot be set by the player, as the Gas Canister automatically goes off in 5 seconds). Rather than exploding when its fuse is up, the Gas Canister bursts and releases a cloud of toxic green vapors, poisoning enemy (and friendly) worms in the radius. Note that although it appears to leave a trail of gas behind it, worms will not be affected by this, only the plume of gas that occurs after the fuse has ended will poison the worms.
- Xbox: Use the White button to cycle through the fuse settings, use the left thumb-stick to turn to face the direction you want to throw, and use the right thumb-stick to adjust the angle of your shot. Press and hold A to charge, and release A to throw the Gas Canister.
- PlayStation 2: Use the L2 button to cycle through the fuse settings, use the left analog stick to aim, press and hold the X button to charge, and release X to throw the Gas Canister.