Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster(1976)
A giant sea monster known as Dragonsaurus has emerged from out of nowhere, terrorizing the depths of the oceans. Great Mazinger, Grendizer and the Getter Robo G team join forces to combat the new threat. But their task becomes more complicated when Dragonsaurus swallows up Boss Borot and makes its way towards Tokyo. Source: ANN
Movie: Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster
Top 9 Billed Cast
Ryo Nagare
Kôji Kabuto
Hayato Jin
Daisuke Umon / Duke Fleed
Tetsuya Tsurugi
Dr. Umon / Professor Yumi
Boss
Dr. Saotome
Video Trailer Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster
Recommendations Movies
Mazinger Z: Infinity(ja)
When the evil Dr. Hell attacks the Earth, the mighty giant mecha Mazinger Z is formed to stop him.
Godzilla vs. SpaceGodzilla(ja)
A mysterious extraterrestrial being resembling Godzilla rapidly approaches Earth. The monster, dubbed SpaceGodzilla, lands to challenge the King of the Monsters.
Giant God Warrior Appears in Tokyo(ja)
The short focuses on the God Warrior from Nausicaa of The Valley of The Wind (1984). Super-powered bio-weapons in ceramic armor begin attacking Tokyo, annihilating human civilization.
Godzilla vs. Megalon(ja)
Inventor Goro Ibuki creates a humanoid robot named Jet Jaguar. It is soon seized by an undersea race of people called the Seatopians. Using Jet Jaguar as a guide, the Seatopians send Megalon as vengeance for the nuclear tests that have devastated their society.
King Kong Escapes(ja)
An adaptation of the Rankin/Bass cartoon, "The King Kong Show". King Kong is brought in by the evil Dr. Who to dig for Element X in a mine when the robot Mechani-Kong is unable to do the task. This leads to the machine and the real Kong engaging in a tremendous battle atop Tokyo Tower.
Yatterman(ja)
Gan and his girlfriend Ai are mild-mannered toy shop owners by day but, when evil lurks, they transform into superheroes Yatterman 1 & 2. With the help of a dog-shaped robot, Yatterwoof, they take on the Doronbow gang, lead by the sexy Lady Doronjo. Together, they must stop the evil gang from finding the four magical skull pieces that will allow them to control the world!
Kaiju No. 8: Mission Recon(ja)
In a Kaiju-filled Japan, Kafka Hibino works in monster disposal. After reuniting with his childhood friend Mina Ashiro, a rising star in the anti-Kaiju Defense Force, he decides to pursue his abandoned dream of joining the Force, when he suddenly transforms into the powerful "Kaiju No. 8." An action-packed recap of the first season of Kaiju No. 8 and a new original episode, Hoshina's Day Off.
Attack on Titan II: End of the World(ja)
Eren Yeager leaves to restore a break in the wall destroyed by a Titan. He comes under attack by the Titans and is cornered. Shikishima comes to his aid. The titans never stops attacking. Eren is now injured and tries to protect Armin, but is swallowed by a titan. A Titan with black hair appears and begins to expel the other titans.
Godzilla Against MechaGodzilla(ja)
JSDF pilot Akane has a fateful encounter when a new Godzilla emerges in Tateyama. As a countermeasure, a cyborg named Kiryu is constructed from the remains of the original. The machine is discovered to harbor the restless soul of the original monster as Akane must learn to find value in her own life as well.
Code Geass: Akito the Exiled 4: Memories of Hatred(ja)
While W-0 is away, Leila and the remaining crew at base find themselves surrounded by Britannian Knightmares. Piloting the Vercingetorix, Shin Hyuuga leads the enemy charge, having usurped the position of Grand Master in the Knights of St. Michael. With her core members unavailable, it's up to Leila to protect her comrades, but this may be much tougher than she realizes: a spy lurking among them is finally ready to reveal himself. Left with no choice but to surrender, Leila arranges a meeting with Shin in order to ensure the safety of her squad. But as negotiations begin to fall apart, Akito and an unexpected ally return in the nick of time to turn things around.
Pacific Rim(en)
Using massive piloted robots to combat the alien threat, earth's survivors take the fight to the invading alien force lurking in the depths of the Pacific Ocean. Nearly defenseless in the face of the relentless enemy, the forces of mankind have no choice but to turn to two unlikely heroes who now stand as earth's final hope against the mounting apocalypse.
Gurren Lagann The Movie: Childhood's End(ja)
Simon and Kamina live in an underground city monitored by the village chief. When Simon stumbles upon an artifact and beastmen invade from the surface, Simon and Kamina rebel against them.
Godzilla vs. Kong(en)
In a time when monsters walk the Earth, humanity’s fight for its future sets Godzilla and Kong on a collision course that will see the two most powerful forces of nature on the planet collide in a spectacular battle for the ages.
Code Geass: Akito the Exiled 3: The Brightness Falls(ja)
After discovering the face of their true enemy, someone who is related to Akito and responsible for the Geass placed upon him, W-0 attempts to return to their base at Castle Weisswolf. However, stranded in Warsaw due to a complication involving their military identification, they are forced to accept the help of local gypsies, allowing the squad to take some time to deepen their bonds. Meanwhile, Britannian advisor Julius Kingsley and his guard Suzaku Kururugi begin working together with the Knights of St. Michael in order to crush the European resistance once and for all, armed with the destructive power of a giant weapon known as the Ark Fleet.
The Mysterians(ja)
In Japan, scientifically advanced invaders from the war-destroyed planet Mysteroid cause an entire village to vanish, then send a giant robot out to storm the city by night, after which they request a small patch of land on Earth and the right to marry earthling women, claiming to be pacifists. Mankind must decide whether to capitulate or to resist.
Pacific Rim: Uprising(en)
It has been ten years since The Battle of the Breach and the oceans are still, but restless. Vindicated by the victory at the Breach, the Jaeger program has evolved into the most powerful global defense force in human history. The PPDC now calls upon the best and brightest to rise up and become the next generation of heroes when the Kaiju threat returns.
Gurren Lagann the Movie: The Lights in the Sky Are Stars(ja)
Seven years have passed after the battle of Teppelin... Humans have since reclaimed the surface of the earth and enjoy an unprecedented period of peace and prosperity. However, humanity's increasing population growth triggers the sudden emergence of an unknown, powerful enemy. The fearsome, manipulative power of the mysterious Anti-Spiral proves too overwhelming for humans to even fight back. When everyone becomes desperate and loses hope, Team Dai-Gurren members reunite to stand up once again!
Digimon Adventure(ja)
Two children receive a strange egg that hatches into their very first Digimon, leading to the night that would change their lives forever.
Ghidorah, the Three-Headed Monster(ja)
After a meteorite unleashes a three-headed beast upon Tokyo, Mothra tries to unite with Godzilla and Rodan to battle the extraterrestrial threat.
Monsters vs Aliens(en)
When Susan Murphy is unwittingly clobbered by a meteor full of outer space gunk on her wedding day, she mysteriously grows to 49-feet-11-inches. The military jumps into action and captures Susan, secreting her away to a covert government compound. She is renamed Ginormica and placed in confinement with a ragtag group of Monsters...
Similar Movies
Destroy All Monsters(ja)
At the turn of the century, all of the Earth's monsters have been rounded up and kept safely on Monsterland. Chaos erupts when a race of she-aliens known as the Kilaaks unleash the monsters across the world.
Ebirah, Horror of the Deep(ja)
Searching for his brother, Ryota stows away on a boat belonging to a criminal alongside two other teenagers. The group shipwrecks on Letchi island and discover the Infant Island natives have been enslaved by a terrorist organization controlling a crustacean monster. Finding a sleeping Godzilla, they decide to awaken him to defeat the terrorists and liberate the natives.
The War of the Gargantuas(ja)
Gaira, a humanoid sea beast spawned from the discarded cells of Frankenstein's monster, attacks the shores of Tokyo. While the Japanese military prepares to take action, Gaira's Gargantua brother, Sanda, descends from the mountains to defend his kin. A battle between good and evil ensues, leaving brothers divided and a city in ruins.
Gunbuster: The Movie(ja)
Noriko Takaya's dream is to become a space pilot like her father, who died when she was young after an attack by alien forces in deep space. After entering Okinawa Girls Space Pilot High School, she must persuade everyone, especially herself, that she can fulfill her goal and become an accomplished pilot despite being just an ordinary girl.
Rampage(en)
Primatologist Davis Okoye shares an unshakable bond with George, the extraordinarily intelligent, silverback gorilla who has been in his care since birth. But a rogue genetic experiment gone awry mutates this gentle ape into a raging creature of enormous size. To make matters worse, it’s soon discovered there are other similarly altered animals. As these newly created alpha predators tear across North America, destroying everything in their path, Okoye teams with a discredited genetic engineer to secure an antidote, fighting his way through an ever-changing battlefield, not only to halt a global catastrophe but to save the fearsome creature that was once his friend.
King Kong vs. Godzilla(ja)
The advertising director of Pacific Pharmaceuticals, frustrated with the low ratings of their sponsored TV program, seeks a more sensationalist approach. He orders his staff to Faro Island to capture King Kong for exploitation. As Godzilla re-emerges, a media frenzy generates with Pacific looking to capitalize off of the ultimate battle.
Mothra vs. Godzilla(ja)
Journalists Ichiro Sakai and Junko cover the wreckage of a typhoon when an enormous egg is found and claimed by greedy entrepreneurs. Mothra's fairies arrive and are aided by the journalists in a plea for its return. As their requests are denied, Godzilla arises near Nagoya and the people of Infant Island must decide if they are willing to answer Japan's own pleas for help.
Godzilla Raids Again(ja)
Two fishing scout pilots make a horrifying discovery when they encounter a second Godzilla alongside a new monster named Anguirus. Without the weapon that killed the original, authorities attempt to lure Godzilla away from the mainland. But Anguirus soon arrives and the two monsters make their way towards Osaka as Japan braces for tragedy.
Knights of Sidonia: The Movie(ja)
The year is 3394. The solar system has been long destroyed by a strange alien race called Gauna. Now humans are barely maintaining population in their seed ships - the ones they also used to escape a thousand years ago. After several years of drifting though space, Sidonia, a seed ship with a population of over 500,000 people, is once again threatened by Gauna. Follow Tanikaze Nagate, a mysterious young man from the deep corners of the ship, and his friends as they try to strike back against these gigantic creatures and at the same time learn what they really are for the sake of humanity's survival. -MAL
The Next Generation Patlabor: Tokyo War(ja)
An attack takes place on Rainbow Bridge in Odaiba, Tokyo by the fighter helicopter `Gray Ghost`. 2 days earlier, the Gray Ghost was stolen. The perpetrators are followers of Yukihito Tsuge. Yukihito Tsuge planned a coup of Tokyo 13 years earlier. The leader of Special Vehicle Section 2, Keiji Gotoda, sets out to stop the terrorists.
Godzilla(en)
French nuclear tests irradiate an iguana into a giant monster that viciously attacks freighter ships in the Pacific Ocean. A team of experts, including Niko Tatopoulos, conclude that the oversized reptile is the culprit. Before long, the giant lizard is loose in Manhattan as the US military races to destroy the monster before it reproduces and it's spawn takes over the world.
Miraculous World: Tokyo, Stellar Force(fr)
Kagami drags Marinette to Tokyo to help the Stellars defeat a new supervillain, but Marinette soon realizes her friend has another, untold reason for this trip to Japan.
Mobile Suit Gundam SEED FREEDOM(ja)
In C.E.75, the fighting still continues. There are independence movements, and aggression by Blue Cosmos... In order to calm the situation, a global peace monitoring agency called COMPASS is established, with Lacus as its first president. As members of COMPASS, Kira and his comrades intervene into various regional battles. Then a newly established nation called Foundation proposes a joint operation against a Blue Cosmos stronghold.
Shinkansen Henkei Robo Shinkalion The Movie: The Marvelous Fast ALFA-X That Comes From the Future(ja)
The new enemies, Nahane and Ohanefu, along with the mysterious new Giant Monstrous Beings appear from space to take over the Earth! Holding the key to these events is Shinkalion ALFA-X, which was secretly developed by the Ultra Evolution Institute...!? For Hayato and Team Shinkalion, who had been living in peace, the battle begins again.
Monster Hunter(en)
A portal transports Cpt. Artemis and an elite unit of soldiers to a strange world where powerful monsters rule with deadly ferocity. Faced with relentless danger, the team encounters a mysterious hunter who may be their only hope to find a way home.
Voices of a Distant Star(ja)
It is 2046 when a mysterious alien force begins their annihilation of the human race. Leaving behind the one person she loves, Mikako joins the interstellar battle as a pilot. And so - while Mikako risks her life to save mankind - Noboru waits. The two lovers, worlds apart, desperately strive to remain connected as the gap between them widens at a frightening pace.
Armored Trooper VOTOMS: Alone Again(ja)
The fight with the Martial Church had dire consequences, and Chirico now finds himself a wanderer. An encounter with a woman called Stevia leads to a reunion with old friends, but the homecoming must wait since war refuses to leave Chirico alone.
Gorgo(en)
When an underwater volcanic eruption tears up the sea bed off the coast of Ireland, two treasure hunters make the discovery of a lifetime when they encounter a gigantic prehistoric monster that’s been unleashed from the earth’s crust. After capturing the beast, the pair transport the creature down to London where it’s given the name of “Gorgo” and put on display to an avid public. Little do they realize that Gorgo is just an infant, and that his exponentially larger mother is about to emerge from the depths to avenge the capture of her offspring.
Mothra(ja)
Shipwreck survivors found on the presumably uninhabited Infant Island leads to a scientific expedition that discovers a surviving native population along with the Shobijin, tiny twin fairy priestesses of the island's mythical deity called Mothra. After the fairies are kidnapped by an exploitative businessman named Clark Nelson, Mothra sets out to rescue them.
Godzilla vs. Hedorah(ja)
An ever evolving alien life-form arrives on a comet from the Dark Gaseous Nebula and proceeds to consume pollution. Spewing mists of sulfuric acid and corrosive sludge, neither humanity nor Godzilla may be able to defeat this toxic menace.