[[caption-width-right:207:[-"Meteor Missile Might!" the last thing you'll hear before suffering a DelayedExplosion.-] ]]

''Ryusei Ningen Zone'', better known in the United States as ''Zone Fighter'', is a 1973 {{toku}}satsu series from Creator/{{Toho}}, their second attempt at a superhero series. It is especially notable for crossing over with the ''Franchise/{{Godzilla}}'' franchise.

The Sakimori/Zone family resembles a normal Japanese family, but they are an alien family that came to Earth after their home planet, Peaceland, was destroyed by the evil Garoga aliens. To stop the Garoga army's invasion on Earth, the Sakimori family's three children, Hikaru, the oldest son, Hotaru, the teenage sister, and Akira, the youngest brother, transform into the superheroes Zone Fighter, Zone Angel and Zone Junior, respectively. Zone Fighter can also turn into a giant sentai to fight kaiju, but only for a few minutes. Zone Fighter must use several different powers to kill the Terror Beasts and stop the Garoga once and for all.

The show sadly had a very short run (so short that making a paragraph on the series as a whole can't be done, or can it?) thanks partly to the 1973 oil crisis and partly due to low ratings. The show has also been criticized for being a "rip off" of the [[LongRunner long-running]] ''Series/{{Ultraman}}''. The show is most famous for having Toho's Godzilla, Gigan, and King Ghidorah making guest appearances on the show. That's right, that Franchise/{{Godzilla}}. The show has many campy moments since it was aimed at kids. Despite this camp however the show could be surprisingly violent for a kids show. You haven't lived until you've seen Zone Fighter [[CruelAndUnusualDeath rip out a monster's eyes, cut off its arms, shoot off its head, and then fly its corpse into space just for cheating in ring toss]]. There's a lot of MonsterOfTheWeek so you'll rarely see the same kaiju twice, especially given what happens to said monster.

Zone Angel and Zone Junior will often help their brother recharge when he is running low on energy by shooting a beam into the capsule on the tip of his head crest or by using their aircraft called Smokey to fire a replacement capsule after the current one falls off. Zone Great, the grandpa, will sometimes help by pulling a lever which will send his energy into the sky and rain down on an attacking kaiju as a lighting bolt called the Thunder Bolt. The family friend Hideaki Obara is only human but will also lend a hand in stopping the Garoga. Franchise/{{Godzilla}} will also help time to time, and the family even made a sort of "Godzilla Cave".

Zone Fighter's trademark power is his Meteor Missile Might in which wristbands filled with anti-kaiju missiles are fired. Unlike the armies', they actually kill monsters and are very accurate, to the point that they even rival Showa Mechagodzilla's Finger Missiles or Heisei Moguera's Spiral Grenade Missiles. He can also fire a Meteor Proton Beam which can blow up a kaiju with a single blast and is used on monsters too powerful to be killed by the Missile Might Attack. He can also fire a stream of arrow shaped energy which can be either two little red stream, one large red stream, or two very short yellow ones. He can fire a Subduing Mist which acts as a sort of drug to calm down a monster, he can run at jet speed and fly. He also can make a Zone-Barrier to block projectiles or make a Hyper-Barrier to reflect projectiles back at the source.

!!''Zone Fighter'' provides examples of the following tropes:

* AlienInvasion: Subverted by Zone Fighter and his family as they try to save the world from giant monsters called Terror Beasts. Played straight with the evil Garoga who not only want to destroy Earth but have destroyed Planet Peaceland, Zone's home world and making him and his family the last of their kind.
* AttackReflector: Zone Fighter can make a forcefield in the shape of a shield called the Hyper Barrier to reflect beams right back at an attacking monster.
* AwesomeButImpractical: Zone Fighter can grow to become a 62 meter, 55,000 ton warrior more powerful than Godzilla but only for a few minutes.
* BigBad: Baron Garoga, the leader of the Garogas.
* BigDamnHeroes: Zone Fighter obviously. Sometimes Zone Angel, Zone Junior, and Zone Great.
* BreathWeapon: Several monsters in the show including Godzilla and King Ghidorah.
* {{Crossover}}: Godzilla did show up on the show five times after all, and King Ghidorah twice. Gigan only appeared once, but that's understandable, given that said appearance ended in his ''dying''.
* CurbstompBattle: Godzilla vs. Gigan round 2 (technically round 3 if counting ''Godzilla vs Gigan'' and ''Godzilla vs Megalon''), King Ghidorah vs. Zone Fighter round 1.
* DelayedExplosion: The whole point of the show, Zone's Meteor Missile Might will kill a kaiju who will then explode mere seconds after falling over, sometimes even before that. Some monsters even have there heads randomly pop off a few seconds later then suffer a DelayedExplosion.
* TheDragon: Literally, with King Ghidorah.
* DuelingMovies: In this case Dueling Shows since ''Zone Fighter'' is "inspired" by ''Ultraman''.
* EverythingsBetterWithDinosaurs: Even more so when said dinosaur is none other then the nuclear menace Godzilla.
* EyeBeams: At least two monsters in the show have them.
* EyeScream: Zone Fighter rips out the eyes of a monster after karate-chopping him hard enough for them to pop out of their sockets.
* FamilyUnfriendlyDeath: Quit a few in this show.
* FightingAShadow: Subverted in one episode; also notable as the monster spawned from Zone Fighter's shadow is the ONLY monster Zone Fighter could not kill in the series.
* ForegoneConclusion: If this series is believed to be canon to the Showa ''Franchise/{{Godzilla}}'' universe, then you know [[Film/DestroyAllMonsters what will happen to King Ghidorah]].
* FriendshipMoment: Zone Fighter has given quite a few of these to Godzilla in their fights together, particularly in the episodes featureing Zandolla and the Jellars.
* GlassCannon: Zone Fighter dishes out a lot of damage but he has a hard time taking it.
* HotBlooded: The theme song. Sung by Masato Shimon, so it's gotta be.
* KilledOffForReal: The series is notable for featuring the Showa Gigan's canonical death.
* MakeMyMonsterGrow: Zone Fighter grows to giant size in mere second to fight giant monsters for a few minutes before needing to recharge.
* OurDragonsAreDifferent: King Ghidorah again.
* OurMonstersAreWeird: Most of the evil monsters in this show are just too strange to even begin to describe, even by Toho standards.
* PeopleInRubberSuits: Well, duh.
* SpecialGuest: Godzilla, King Ghidorah, and Gigan.
* SpellMyNameWithAnS: In Japan, ''Zone Fighter'' is known as ''Zone The Meteor Man'' or ''The Human Meteor Zone''.
* {{Toku}}