1. Ghidorah, the Three-Headed Monster (三大怪獣 地球最大の決戦)
After a meteorite unleashes a three-headed beast upon Tokyo, Mothra tries to unite with Godzilla and Rodan to battle the extraterrestrial threat.
It has an average vote of 7.041 on TMDB.
2. Invasion of Astro-Monster (怪獣大戦争)
Astronauts Glenn and Fuji investigate Planet X and encounter mysterious aliens known as the Xiliens, who ask Earth's people to help save their world from "Monster Zero". In exchange for borrowing Godzilla and Rodan, the Xiliens offer a cure for cancer. As Glenn investigates, he develops a romance with Miss Namikawa and uncovers the Xilien's true intentions.
It has an average vote of 6.775 on TMDB.
3. Rebirth of Mothra (モスラ)
A new Mothra takes to the air and battles against Desghidorah to save all of humanity.
It has an average vote of 6.05 on TMDB.
4. Nightwish
A professor and four graduate students journey to a crumbling mansion to investigate paranormal activity and must battle ghosts, aliens and satanic entities.
It has an average vote of 4.9 on TMDB.
5. Terror of Mechagodzilla (メカゴジラの逆襲)
A submarine expedition to salvage the remains of Mechagodzilla is thwarted by a massive dinosaur named Titanosaurus. An Interpol investigation leads biologist Ichinose to uncover the work of Dr. Mafune and his mysterious daughter Katsura. Aligned with the Black Hole Aliens, Katsura's life becomes entwined with the resurrected machine.
It has an average vote of 6.816 on TMDB.
6. The People That Time Forgot
Major Ben McBride organizes a mission to the Antarctic wastes to search for his friend who has been missing in the region for several years. McBride's party find themselves in a world populated by primitive warriors and terrifying prehistoric creatures, all of whom they must evade in order to get back safely
It has an average vote of 5.399 on TMDB.
7. Stray Dog (野良犬)
A bad day gets worse for young detective Murakami when a pickpocket steals his gun on a hot, crowded bus. Desperate to right the wrong, he goes undercover, scavenging Tokyo’s sweltering streets for the stray dog whose desperation has led him to a life of crime. With each step, cop and criminal’s lives become more intertwined and the investigation becomes an examination of Murakami’s own dark side.
It has an average vote of 7.5 on TMDB.
8. King Kong vs. Godzilla (キングコング対ゴジラ)
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.
It has an average vote of 6.817 on TMDB.
9. The Flowers of St. Francis (Francesco, giullare di Dio)
In a series of simple and joyous vignettes, director Roberto Rossellini and co-writer Federico Fellini lovingly convey the universal teachings of the People’s Saint: humility, compassion, faith, and sacrifice. Gorgeously photographed to evoke the medieval paintings of Saint Francis’s time, and cast with monks from the Nocera Inferiore Monastery, The Flowers of St. Francis is a timeless and moving portrait of the search for spiritual enlightenment.
It has an average vote of 7.145 on TMDB.
10. Gamera vs. Guiron (ガメラ対大悪獣ギロン)
Two young boys sneak aboard a spaceship and find themselves whisked away to the mysterious planet Terra. There, they encounter Gamera's old foe Gyaos and two female aliens with a taste for human brains. Gamera must save the children and battle the new monster Guiron, whose entire body is a deadly living weapon.
It has an average vote of 5.483 on TMDB.
11. Godzilla vs. Megalon (ゴジラ対メガロ)
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.
It has an average vote of 6.187 on TMDB.
12. Godzilla Raids Again (ゴジラの逆襲)
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.
It has an average vote of 6 on TMDB.
13. Matango (マタンゴ)
Five vacationers and two crewmen become stranded on a tropical island near the equator. The island has little edible food for them to use as they try to live in a fungus covered hulk while repairing Kessei's yacht. Eventually they struggle over the food rations which were left behind by the former crew. Soon they discover something unfriendly there...
It has an average vote of 6.816 on TMDB.
14. King Kong vs. Godzilla
When an underhanded pharmaceutical company goes to a remote tropical island to steal King Kong for advertising purposes, they get more than they bargained for when the gigantic ape attacks an unsuspecting village and an enormous octopus.
It has an average vote of 6.6 on TMDB.
15. A Face in the Crowd
The rise of a raucous hayseed named Lonesome Rhodes from itinerant Ozark guitar picker to local media rabble-rouser to TV superstar and political king-maker. Marcia Jeffries is the innocent Sarah Lawrence girl who discovers the great man in a back-country jail and is the first to fall under his spell.
It has an average vote of 7.614 on TMDB.
16. H.G. Wells' War of the Worlds
In this modern retelling of H.G. Wells' classic sci-fi horror, civilization is laid to ruin when a super race of aliens invades Earth. In a blink of an eye, massive "walkers" cover the planet, annihilating all in their path. As cities crumble and human flesh is ripped from the bone, one man struggles to find the one weapon that will turn the tide for mankind.
It has an average vote of 5.242 on TMDB.
17. Godzilla (ゴジラ)
Japan is thrown into a panic after several ships are sunk near Odo Island. An expedition to the island led by Dr. Yemani soon discover something far more devastating than imagined in the form of a 50 meter tall monster whom the natives call Gojira. Now the monster begins a rampage that threatens to destroy not only Japan, but the rest of the world as well.
It has an average vote of 7.597 on TMDB.
18. Mothra (モスラ)
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.
It has an average vote of 7.086 on TMDB.
19. Ebirah, Horror of the Deep (ゴジラ・エビラ・モスラ 南海の大決闘)
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.
It has an average vote of 6.326 on TMDB.
20. Godzilla vs. Mechagodzilla (ゴジラ対メカゴジラ)
An Okinawan prophecy that foretells the destruction of the Earth is seeming fulfilled when Godzilla emerges to return to his destructive roots. But not all is what it seems after Godzilla breaks his ally Anguirus's jaw. Matters are further complicated when a second Godzilla emerges, revealing the doppelgänger as a mechanical weapon.
It has an average vote of 7.027 on TMDB.