Klin is a beautiful planet blessed with an abundance of fresh water. And it is because of this wealth that Waller, a warring empire, invades the planet and ravages it for its liquid wealth.
Two years later, with nearly no water or natural resources left on their planet, the survivors pin their last hopes on two children and send them to Earth, a planet with similar environment to Klin. These two children are Spielban & Diana.
12 years after their arrival, they finally wake up from their sleep. Receiving the knowledge of the history and culture of Earth, they continue their growth as soldiers.
Then, the Wahrer Empire approaches Earth, with the intent of raiding Japan for its water. To stop them and to protect the planet, Spielban & Diana stand up to them, but deceptions, lies, heartache, and the painful truth awaits the two of them...
This is one of the series used as source footage to create VR Troopers.
Recurring Metal Hero tropes include:
- Action Girl: Diana and Helen
- Big Bad: Guardian Deity Wahrer Or is it?
- Finishing Move: Arc Impulse, a series of slashes with the Twin Blade usually preceded with a thrust that elongates one of the blades and impales the opponent.
Jikuu Senshi Spielban provides examples of the following tropes:
- Amplified Animal Aptitude: Guillotine has a talking gerbil named Poss.
- Apocalypse How: Waller wiped out planet Clin for its water, forcing the inhabitants to leave.
- But Not Too Foreign: Diana's mom is white but she is Japanese...
- Combination Attack: Spielban and Diana have one, fusion shot.
- Conqueror from the Future: Subverted with Young Emperor Zero. Hes more of a case of How the Mighty Have Fallen.
- Cosmic Retcon/Reset Button: Defeating Wahrer completely negates the events of the series.
- Cool Plane: Jet Gaios and Skulldon Jet.
- "Do It Yourself" Theme Tune: Spielban's dad sings most of the songs for the series.
- Double Weapon: Twin Blade.
- The Dragon: General Deathzero and Emperor Guillotine share the role.
- Early Installment Weirdness: Early episodes would have the last scene with Waller debuting the next Monster of the Week. This was dropped quickly.
- Earth All Along: In the Twist Ending, Klin turns out to be Earth in the future, and Spielban and Diana were really sent through time rather than space.
- Drill Tank: Drill Gaios
- Filler Villain: Episodes 36-37 focus on Wallers newest member Youki, who uses brainwashing and dirty tactics to fight Spielban. After sitting episode 38 out, episode 39 unceremoniously has him become The Starscream, get killed of and then devotes the rest of the episode to a tougher-than-usual Monster of the Week.
- Fling a Light into the Future: At first seems to be of the spatial variant. Turns out to be a temporal variant.
- HeelFace Turn: Helen, though she wasnt really evil to begin with.
- Luke, I Am Your Father: Dr. Bio is Spielban's dad.
- The Man Behind the Curtain: Pandora made up Waller to keep her minions loyalty
- Market-Based Title: In Brazil, the series was released as Jaspion 2: Spielvan, pretending to be a sequel to a fellow Metal Hero who was a huge success in the country. But the character was still called Spielban (or rather, "Spielvan") there.
- Meaningful Name: Wahrer=pun on water.
- Soundtrack Dissonance: Dianas theme is a lot more upbeat than the rest of the soundtrack.
- Taken for Granite: The fate of The Dark Chick Rikki, courtesy of Youki needing a throne.
- Transforming Mecha: Gran Nasca Mothership into Combat Formation and Big Bang Cannon.