Marty eventually succeeds in forcing a way through the Armoured Cavalry’s defences, but once inside the Tower, he runs into the remaining Three Lords of Invincibility - Wind, Cloud and Lightning - who are determined to prevent him from reaching the top floor. Meanwhile, Ally, Buttons, Captain Magnum and Violet thread their way through a fierce artillery barrage to reach the external shell of the Gigantor. To help Ally get inside the Gigantor, Violet uses her sonic weapon as a shield, while Ally and Buttons identify a possible entrance to the interior of the Giant – a missile launching tube! It means they have only seconds to pass through the launch tube before another missile is fired, and once inside the giant, they have to quickly find their way through a maze of passages to reach its core unit.