Triworm is a multiple-headed sandworm-like Field Commander who was sent to Australia. He led an army of XBorgs & Bruisers in an ambush attack on Gia, Emma, & Richie, only to be defeated by the three. During the final battle with Emperor Blackcross, Triworm attempted to resort to gain the upper hand with an Armada bazooka; but the weapon was destroyed as he is defeated by Super Mega Rangers' finishing attacks & then destroyed by the Legendary Samurai Megazord & Q-Rex Megazord.