Casmo Zone

The Casmo Zone or Casmozone is a dark dimension with twisted physics and horrifying conditions. When the star of the planet Romulos collapsed and became a black hole many of the Machine Robo who lived on the planet were sucked into the Casmo Zone; many were unable to adapt and survive the hellish conditions within but some did. In order to survive they became the warped Devil Invaders - becoming Casmodon, Zarios, Falgos, Gildis or Baldas types. Desperate for energy, they began using Star Gates to attack Earth, where the Machine Robo were living.