When the Super Mega Rangers use the full power of the Dino Rangers with all of the Dino Thunder Keys, the Legendary Megazord exchanges arms with the Q-Rex Megazord to become the Legendary Q-Rex Megazord. In this form, Super Megaforce Silver’s cockpit is teleported to the Legendary Megazord, appearing in front of Super Megaforce Red’s console. The formation is similar to the auxiliary combinations used by the Thundersaurus Megazord.
The Legendary Dino Thunder Megazord’s finishing attacks are the Super Mega Drill in the way the Thundersaurus Megazord used to unleash his finisher, and the Q-Rex Transwarp Attack, where the Legendary Dino Thunder Megazord first slashes the opponent with the drill arm and then bites them with the Rex head arm.