Choushinsei Flashman

"On one fateful day, five children from Earth were kidnapped and sent to the far reaches of space. Twenty years later..."

Chōshinsei Flashman (Supernova Flashman) is the tenth Super Sentai show, airing from 1986 to 1987.

Twenty years ago, the Reconstructive Experiment Empire Mess authorized the abduction of five kids for the purposes of their experiments. The benevolent beings from the Flash Galaxy saved the kids, and took each of them to a different planet of their solar system. With the abilities they gained from the training on these planets, the now-grown kids return to Earth to fight the Mess as the Flashmen. There's just one problem: since they've been away from Earth for so long, the planet's atmosphere has become deadly to them, so they can only stay for a year; otherwise, they die of the Anti-Flash Phenomenon.

The Flashmen are:
 * Jin (Red Flash): The Smart Hero.
 * Dai (Green Flash): The Big Lancer.
 * Bun (Blue Flash): The Kid Appeal Smart Guy.
 * Sara (Yellow Flash): The Smart Chick, who possesses a sharp, analytical mind for exposing enemy weakness.
 * Lou (Pink Flash): The Big Heart, who possesses the best leaping skills of the team.

The members of Mess consist of:
 * Great Emperor Ra Deus : The Big Bad
 * Lee Keflen: The Evil Genius, Monster Maker and Ra Deus' right-hand man.
 * Ley Wandar: The Zebra-Striped Dragon
 * Ley Nefel: The leopard-like Dark Action Chick
 * Wolk and Kilt: Those Two Bad Guys and Dark Action Girls
 * Ley Galus: The Brute
 * Kuragen: A squid monster summoned to bring the monsters up to size.
 * The Alien Hunters: The Quirky Miniboss Squad, led by the quite-competent Sir Cowler. They were the ones who abducted the Flashman team when they were infants.
 * Zolors: The insectoid Mooks.

Recurring Super Sentai tropes:

 * All Your Colors Combined: The Rolling Vulcan.
 * By the Power of Grayskull: "Prism Flash!".
 * Calling Your Attacks
 * Color Coded for Your Convenience: The codenames use each member's color as a head word and the team's prefix ("Flash") as the tail word, instead of the other way around.
 * Cool Airship: The Star Condor
 * Cool Bike: The Flash Hawk bikes, one for each member.
 * Five-Man Band: There are three Smart Guys and two Big Guys on the team.
 * The Hero: Jin
 * The Lancer: Dai
 * Kid Appeal Character: Bun
 * The Chick: Sara
 * The Heart: Lou
 * Team Pet: Mag; also their mentor.
 * Home Base: The Round Base, a large building that can go into space.
 * Humongous Mecha: The first Sentai team to have a second giant robot. The first robot was the usual combining mech, while second was of the transforming kind.
 * Combining Mecha: Tank Command (Red) + Jet Delta (Green and Yellow) + Jet Seeker (Blue and Pink) = Flash King
 * Transforming Mecha: The Flash Titan truck, which transforms into the support robot Titan Boy, which can then combine with its trailer to form the Great Titan.
 * Law of Chromatic Superiority: Nastily subverted once the Anti-Flash Phenomenom causes the Flashmen to temporarily lose their powers; Jin is the first to go.
 * Make My Monster Grow: Kuragen's reason for living.
 * Monster of the Week: The Jūsenshi or Beast Warriors, creatures created by Lee Keflen's genetic synthesizer from the genes of Earth's animals.
 * Mooks: The insectoid Zolors, complete with acid webbing.
 * The Movie: Two, although the second was a Compilation Movie of Titan Boy's intro arc (ep. 15-18).
 * "On the Next Episode of..." Catchphrase: "Prism Flash! Chōshinsei Flashman!"
 * Regular Caller:
 * Robot Buddy: Mag.
 * Supervillain Lair: Reconstructive Experiment Base Labor, a sort-of flying saucer.
 * Theme Music Power-Up:
 * Transformation Trinket: See By the Power of Grayskull
 * Transformation Name Announcement
 * Two Girls to a Team: The third Sentai team with two girls and the second with a Yellow and Pink duo.
 * Weapon of Choice
 * Bifurcated Weapon: The Prism Shooters
 * BFG: The "Vul" guns, one for each Flashmen and named after each of their respective color.
 * Jin: Prism Seiken
 * Dai: Prism Kaiser
 * Bun: Prism Ball and Star Darts.
 * Sara: Prism Batons and Shocking Beads.
 * Lou: Prism Boots and Shocking Hearts.

Tropes specific to Choushinsei Flashman:

 * Bizarre Alien Biology: Their years on the Flash planets have altered the Flashmen's genetic makeup, giving them superpowers but making it impossible for them to stay on Earth for more than a year.
 * Bittersweet Ending:
 * However it is still the one of the only two sentai so far to not end on an overly happy note. The other being Timeranger which is probably worse.
 * Competitive Balance
 * Jack of All Stats: Jin and Sara.
 * Lightning Bruiser: Dai
 * Fragile Speedster: Bun
 * Glass Cannon: Lou
 * Dub Name Change: Dai is called "Dan" and Bun is called "Go" in Brazil.
 * Everything Trying to Kill You:
 * Fish Out of Temporal Water: Every single member of the Flashmen.
 * Heel Face Turn: Baraki used to work for Mess, until his life was saved by Titan the Hero.
 * Homage: The interior of Round Base looks an awful lot like the TARDIS, down to the hexagonal console.
 * Lego Genetics: This is how the Mess creates their monsters.
 * Meaningful Name: Ra Deus. With a name like that, do you think he considers himself a god?
 * The name "Tokimura" means "time village". Dr. Tokimura is a time machine inventor.
 * Mid-Season Upgrade: The Flashmen's power source is given a boost when they are weakened by the Anti-Flash Phenomenon. In the finale, new monsters are created with help from Ra Deus's DNA.
 * Name's the Same: Choushinsei Flashman has nothing to do with either George MacDonald Fraser's series of novels or the Robot Master.
 * Only One Name: The first Sentai to have its members lack surnames,.
 * Precursor Hero: the Hero Titan, the one who the Flash Aliens based the Flashman technology on.
 * The Speechless: Ley Galus and the other monsters can only growl.
 * Stock Super Powers
 * Super Strength: Dai
 * Wall Crawl: Bun
 * Super Senses: Sara
 * In a Single Bound: Lou
 * Taking You with Me:
 * Time Stop: Ley Wanda later gains this ability.
 * Tomboy and Girly Girl: Lou and Sara.
 * Touched by Vorlons
 * The Voiceless: The Alien Hunters, with the obvious exception of Sir Cowler.
 * We Can Rule Together: Invoked by Lee Keflen at the very last episode to the Flashmen. To much to everyone's surprise, it's Sara who's the first to call shenanigans on it.