The Greenzillas are plant-themed alien outlaws that Sledge has Wrench deploy to battle the Rangers during his final all-out assault on Earth, the Greenzilla that appears in the episode ''One More Energem" which is the final part of the two-part season finale of Power Rangers Dino Charge, is the final monster to be fought by the Dino Charge Rangers of that season, even after his death, his offspring survived and were scattered across the world for another final assault by Sledge, and later on for his master plan to sell the Earth to a Junk Dealer for bounties.