Godzilla Monsters

Monster Zero, Ghidrah, Ghidorah, King Ghidorah
(Same monster, but it has different names.)

- can create a force field around itself -
- electricutes with its bites -
- fireballs and energy bolts shoot from its mouth -

1965
Godzilla vs Monster Zero

aka (also known as):
Kaijû daisenso
Kaijû daisenso Kingughidorah tai Gojira
Monster Zero
Battle of the Astros
Invasion of Astro-Monster
Invasion of the Astro-Monsters
Invasion of the Astros
Invasion of Planet X
Godzilla vs. Monster Zero
The Great Monster War
War of the Monsters
Avaruushirviöt hyökkäävät
Finland
Befehl aus dem Dunkel
West Germany
Invasion planète X
France
Invasione degli astromostri
Italy
Inwazja jaszczurów
Poland
Los Monstruos invaden la Tierra
Spain

Basic Story:
The Xilians of Planet X (a fictional planet that sits behind Jupiter) are being terrorized by Monster Zero (aka Ghidorah, King Ghidorah).
The Xilians offer Earth a cure-everything wonder drug (in a box) in exchange for Earth sending Godzilla and Rodan to fight Monster Zero.
Earth agrees to the plan.
Godzilla and Rodan then fight Ghidorah and drive him away.
Wonder-Drug-In-A-Box is really a taped ultimatum for Earth to surrender to Planet X.
The Xilians claim they can control all three monsters (with magnetic waves) and then release them on Earth.
The three monsters start rampaging.
One character, coincidentally, has developed a personal alarm for women traveling alone, whose sound disrupts Xilians.
This sound is broadcast all over the world.
The Xilians leave.
Godzilla and Rodan then fight Ghidorah again, and drive him away.
Earth attempts peaceful relations with Planet X.

1968
Destroy All Monsters

aka (also known as):
Kaijû sôshingeki
All Monsters Attack
Attack of the Marching Monsters
Monster Attack March
Monster Invasion
The March of the Monsters
Les Envahisseurs attaquent
France
Gli Eredi di King Kong
Italy
Frankenstein und die Monster aus dem All
West Germany
Frankenstein und die Monster aus dem Weltall
West Germany
Godzilla - Die Monster aus dem All
West Germany (TV title)
Godzilla und die Monster aus dem All
West Germany
Gojira dengeki daisakusen
Japan (reissue title)
Hirviöt uhkaavat maailmaa
Finland
Invasión extraterrestre
Spain
Operation Monsterland
UK

Basic Story:
By 1999, all monsters have been caught and placed on an island called Monsterland.
Communications to the island are stopped by aliens (Kilaaks).
The Kilaaks send the following out to destroy: Godzilla to NYC, Rodan to Moscow, Mothra to Beijing, and Gorosaurus to Paris, etc.
The Kilaaks monster-controlling facility on the moon is destroyed by the UN.
The Kilaaks then release King Ghidorah.
Godzilla and the others (including Kumonga) defeat Ghidorah and return to Monsterland.

1972
Godzilla on Monster Island

1991
Godzilla vs. King Ghidorah

aka (also known as):
Gojira tai Kingu Gidorâ
Godzilla - Duell der Megasaurier
Germany
Godzilla Contra King Ghidorah
Portugal
Godzilla contra King Ghidorah
Spain

Basic Story:
23rd century time-travelers (Futurians) release genetically engineered creatures (Dorats) that become irradiated and fuse with Ghidorah.
Ghidorah then maurades 1992 Japan.
A reincarnated new-and-improved Godzilla fights Ghidorah.
Ghidorah falls into the ocean and remains comatose for hundreds of years.
Ghidorah is recovered and made into a cyborg called Mecha-King Ghidorah.
Godzilla and Mecha-King Ghidorah fight and both fall into the ocean.