Belyudra[1] (ベリュドラ Beryudora) is the gigantic chimeric monster that appears in Mega Monster Battle: Ultra Galaxy Legends The Movie. It is made up of countless monsters and aliens that the Ultras had fought throughout history, combined into a single being controlled by Ultraman Belial.
Mega Monster Battle: Ultra Galaxy Legends The Movie
Belyudra was Ultraman Belial's trump card in preventing the Ultras from returning the Plasma Spark to the Land of Light. After being defeated by Ultraman Zero, Belial called forth all his monsters from his Giga Battle Nizer, as well as some more that rested in the Monster Graveyard. Together, Belial and all the monsters came together to form a colossus known as Belyudra. Belial personally rode atop his creation, controlling it from above with the Giga Battle Nizer.
Against the remaining Ultramen, EX Gomora, and the ZAP SPACY crew, Belyudra was unstoppable, effortlessly shrugging off every attack made by everyone. During the battle, Rei notices Belial's Giga Battle Nizer having been disarmed by Zero earlier in the battle. Using his own Battle Nizer, Rei causes all the monsters that make up Belyudra to riot against Belial's control, immobilizing Belyudra. With the opportunity, the ZAP SPACY crew fire the Pedanium Launcher from the Space Pendragon, Ultraman Leo and Astra fire their Ultra Double Flasher, Dyna fires his Solgent Beam, EX Gomora fires his EX Super Oscillatory Wave, Ultraman fires his Ultra Slashes, Ultraman Mebius turns into his Burning Brave form and performs the Burning Mebium Dynamtie, and Zero uses the Plasma Spark to merge his Zero Sluggers into the Zero Twin Sword and attacks Belial directly with the Plasma Spark Slash. With Belial severely wounded and out of action, Belyudra collapses and explodes, followed by the Giga Battle Nizer.
Trivia
Although Belyudra's subtitle and Belial claim that Belyudra is made of one hundred monsters, it is comprised of almost all the monsters killed by various Ultras, far exceeding just one hundred. That said, Belyudra is made up of far more monsters than Belial can control with the Giga Battle Nizer.
Belyudra was created with CGI and a giant puppet that is filmed close up.