Shapeshift

(Up to Weapons (Worms Unlimited))

The worm shapeshifts/morphs into an animal of its choice, which then sets off on its usual journey. Practically speaking, the worm can be considered to have exchanged its life for a free animal, although in that scenario the worm would do death-damage, which doesn't happen here, nor can the animal be blocked by the worm that shapeshifted into it.