

The Doron Empire from the Ganymede System discovered Earth as an ideal world for them to conquer. The interest of expanding the empire came as a result of the power-hungry General Ozmel who overthrew the current reigning Queen Medusa of the Ganymede System as a start of their universal conquest. Almost completely succumbed to the empire, Earth is at its last days, and one scientist, Dr. Shikishima, had only one hope in restoring Earth from its alien conquerors--- a massive mecha known as the Mechander Robo, specially programmed and designed to battle these invading aliens from complete takeover of Earth. Along with this awesome fighter machine, Dr. Shikishima also recruited three pilots to be placed behind the Mechander Robo's controls--- the mysterious Jimmy Orion, the scientist's son Ryosuke Shikishima, and Kojiro Hachijima. Although the primary storyline is Earth battling the Doron Empire, there is something within lead pliot Jimmy Orion's past that was somewhat connected towards the entire storyline.

The Congistar Corps Invade Japan!

Mysterious Warrior Jimmy Orion

Jimmy's Deadly Decision to Power In

Look! That's the Aerial Fortress City

Protect the Transport Fleet With Your Life!

Sortie!! Air Carrier King Diamond

The Congistar Corps' Hawaii Annihilation Strategy

Strike! Omega Missile

The South China Sea's Last Battle

Danger! Mechander Max

Final Blow! Mechander Fencer

The Mysterious Big Hurricane

Rescue the Phantom Atlantic Fleet!

Operation Tokyo Black Hole

Sortie! Combination Tricar

Mechander Robo's Close Call

Destroy the Omega Missile!

Secret Base Attacked

Break Into the Demonic Persian Gulf!

Counterattack Singapore Rescue Operation

Shoot that Giant Robot!

The End of the Stadium Base

Sleep Forever, Mother

4-Person Combination Mechander Robo

Expose the Mysterious Trick Strategy!

Do-or-Die Space War

Infiltration! Aerial Fort City

Don't Turn Back! Jimmy Orion

The Target of Attack is the Enemy Mobile Forces

The Mysterious Land Route Strategy

Death Match! Geostationary Satellite Destruction Plan

Medusa Dies in the South Sea

Proceed! The Earth Force Counterattack

The End of Imperator Ozmel

Mechander Robo Forever