Similar to my idea of a Japanese anime movie where I team up with video game characters, I thought of a sequel, but instead with monsters from Toho's Godzilla series.
A year has passed after the events of Tommy Vaccaro and the Heroes Gaming. A Japanese man greets Tommy who resides in Los Angeles, California. The man tells Tommy that another invasion on Earth is inevitable. He gives Tommy a rock with a symbol that can summon Mothra, one of Earth's guardian monsters. The man tells Tommy to use it when the time is right and Tommy vows to do so.
Out in space, an alien race known as the Vortaak, are plotting an attack on Earth. Before they began the assault a meteor shower occurs and damages their mothership, forcing them to abort the attack. The meteors also hit Earth and the impact craters generate crystal formations, which are causing destruction in major cities.
- Tommy Vaccaro (voiced by himself) - The main protagonist. He became a hero after he and the heroes of gaming defeated the villians and saved the world. Now he must save the world again with the help of the Global Defense Force and Earth's guardian monsters.
- Kenji Miku - A GDF technician who believes that Earth's monsters can save their planet.
- Tagaki - The GDF base commander. He orders GDF mecha units into battle and will stop anything that threatens the planet.
- Gyozen - A GDF military advisor and the pilot of the Atragon. He has failed his battles against Godzilla and has vowed eternal hatred for all monsters. He rufuses to listen to what Tommy and Miku have to say about the monsters. The crystals have caused his hatred to corrupt him. He dies honorably in his battle against Godzilla and Mothra.
- Japanese Man (Akira Takarada) - An unamed Japanese man who warns Tommy about a new invasion and gives him the symbol used to summon Mothra.
- Godzilla - Earth's most powerful guardian monster. An irradiated dinosaur with a powerful Atomic Breath attack. Godzilla's appearance is taken from Godzilla 2000.
- Mothra - Earth's most trusted guardian monster. A giant moth with incredible flight speed. Mothra's appearance is taken from Godzilla vs. Mothra.
- Anguirus - A giant ankylosuar with a spiked shell. Anguirus attacks by rolling and using the Sonic Roar. Anguirus' appearance is taken from Godzilla: Final Wars.
- Rodan - An irradiated pteranodon. Rodan can breathe a Heat Beam and is the fastest of Earth's monsters. Rodan's appearance is taken from Godzilla vs. Mechagodzilla II.
- Baragon - A giant subterranean reptile capable of burrowing underground and breathing fire. Baragon's appearance is taken from Godzilla, Mothra, and King Ghidorah: Giant Monsters All-Out Attack.
- Varan - A giant varanidae that can glide at speeds of Mach 1.5. Varan's appearance is taken from Destroy All Monsters.
- King Caesar - The guardian of Okinawa, Japan. King Caesar is a statue of a shisa that came to life. King Caesar's appearance is taken from Godzilla: Final Wars.
Global Defense Force
- Kiryu - A giant robot built using the bones of the 1954 Godzilla.
- Mechagodzilla 2 - A giant robot simalair to the Vortaak's Mechagodzilla, but has more defenses.
- M.O.G.U.E.R.A. - A giant robot with an impressive weapon system.
- Jet Jaguar - A human-sized robot created for unknown reasons. Jet Jaguar can change his size and is acrobatic.
- Mecha-King Ghidorah - A cybernetic version of King Ghidorah. When King Ghidorah is defeated, the GDF reconstructs him, giving Earth the upperhand against the Vortaak.
- Gigan - An alien cyborg and one of the Vortaak's monsters. Gigan first appears as his Showa incarnation and later appears as his Millenium incarnation.
- Megalon - A beetle god and the guardian of the Seatopians. Megalon's hands are drills used for burrowing underground and attacking enemies.
- King Ghidorah - A three-headed dragon and the Vortaak's most fearsome monster. King Ghidorah's appearance is taken from Godzilla vs. King Ghidorah.
- Orga - An alien monster with Godzilla's DNA. Orga has massive physical strength and can fire a beam from his shoulder.
- Mechagodzilla - A giant robot resembling Godzilla and one of the Vortaak's monsters.
- The Visitor - An alien monster that the Vortaak abducted from it's home planet. It attacks with it's massive jaws and crab-like apandages, and can shoot a Brainspasm from it's cranium.
- Destoroyah - A micro-organism capable of wiping out oxygen that later mutated into a giant monster.
- Megaguirus - A giant, prehistoric dragonfly and queen of the Meganulon swarm. Megaguirus can drain energy from foes and use their beam attacks.
- Titanosaurus - A prehistoric aquatic dinosaur that can create whirlwinds from it's tail fin.
- Biollante - A plant that was fused with Godzilla's DNA.
- Obsidius - A living lava golem that was born after a volcano erupted in Seattle, Washington.
- Krystalak - A living crystal organism. Born from the meteor shower, Krystalak's energy comes from crystals and can create an explosion from his heart.
- SpaceGodzilla - The monster that caused the meteor shower. SpaceGodzilla has been sealed in a black hole and plans to return the favor to Earth.
Los Angeles, California, United States - The largest city in California where Tommy resides. The crystals don't affect the city and no monster battles take place.
Monster Island - Off the coast of Japan, this island is home to Earth's guardian monsters and the Global Defense Force homebase. Mothra takes Tommy here to work with the Earth's monsters. No monster battles take place.
Osaka, Japan - The third largest city in Japan. The city is covered in a toxic gas cloud. Jet Jaguar and Baragon fight Megalon and Gigan.
Tokyo, Japan - The capital city of Japan. Harsh tsunamis and strong rain has flooded the city. Anguirus fights with Destoroyah who is killed by Kiryu.
London, England - The capital city of England. The crystals have created an anti-gravity vortex, taking the city into the sky. M.O.G.U.E.R.A. fights Orga, but M.O.G.U.E.R.A. suffers heavy damage and is aided by Kiryu while Mothra fights King Ghidorah.
Paris, France - The capital city of France. Biollante has covered the city in plant life and is being protected by Megaguirus. King Caesar fights Biollante while Mothra and Rodan fight Megaguirus.
Sydney, Australia - The largest city in Australia. Excessive blizzards caused by the crystals have turned the city into a frozen wasteland. Varan fights with Titanosaurus.
Seattle, Washington, United States - The largest city in Washington. The crystals caused a volcano to erupt, engulfing most of the city in lava. Kiryu fights Obsidius while Godzilla, Anguirus, and Rodan fight King Ghidorah.
San Francisco, California, United States - The second largest city in the United States. Most of the city has been damaged by a series of earthquakes. The Vortaak launches their attack on the city with the help of The Visitor and Mechagodzilla who do battle with Anguirus and Mechagodzilla 2 while Mecha-King Ghidorah brings down the Mothership.
Mothership - The Vortaak's Mothership, which has crashed-landed into San Francisco Bay. Mecha-King Ghidorah fights and upgraded Gigan.
New York, New York, United States - The largest city in New York and the United States. A meteor crashed into the city, leaving a large crater. Godzilla and Kiryu fight Krystalak and later Godzilla fights SpaceGodzilla
- The fim's plot is taken from Godzilla: Unleashed.