Mecha and Monsters from 30,000 Miles Under The Sea

The following is a list of the many mecha monsters that appeared in the 1970 anime feature film *30,000 Miles Under The Sea*.

## Human Vehicles

### Oshima Oceanography Institute

* **Long Submarine Boat**: A long thermometer-like boat that can be used as a giant diving bell. While the exact size is unspecified it is presumed to be close to fifty meters in length.
* **Green Deep Water Bulldozer**: One of two underwater vehicles that were used for seabed development.
* **Blue Minisub**: One of two underwater vehicles that were used for seabed development.
* **Speed Boat**: Used to transport people to the Oshima Oceanography Institute and back to the shore.

### Defense Force

The following were vehicles sent by the Defense Force to attack the first Flame Dragon Robot that emerged from underground.

* **Fighter Jet**: They were armed with two missiles under each wing.
* **Type 74 Tank**: They were armed with a cannon and a machine gun on the top.
* **Bomber Plane**: It was armed with two bombs and two missiles under each wing and had an experimental bomb in the underside. It was unable to use its weaponry due to the Flame Dragon Robot being very close to Isamu and Angel.

## Atlas Kingdom

Ten thousand years before the start of the series the surface world as ruled by the Atlas Kingdom. At one point a lake of fire home to giant red reptiles called Flame Dragons (Enryu) and lived in harmony with the Atlas inhabitants. However, the greedy King Magma I sought to use the giants as weapons to conquer the Earth. The Flame Dragons rebelled at the cost of going extinct and the Atlas Kingdom divided into two smaller kingdoms consisting of the Undersea Kingdom and the Underground Kingdom.

### Undersea Kingdom

* **Seathrough**: A white nautilus-like submarine that was used as Princess Angel's escort submarine piloted by Octopus and Tuttle. Among its features were a flight mode, an underside retractable vacuum, and twin underside searchlights.
* **Undersea Kingdom Saucer**: Saucer-like submarines used by the Undersea Kingdom that had searchlights around and under it. They were armed with a cannon that could launch schools of fish, eels, freezing gel, or giant red starfish.
* **Bubble Pod**: Bubble-like submarines that carried one Undersea Kingdom soldier. They had a rubbery surface and armed with a gun in the front that was not used onscreen.
* **Giant Red Starfish**: An aggressive species of giant starfish that were able to incapacitate Flame Dragon Robots by latching onto them.

### Underground Kingdom

* **Flame Dragon Robots**: Robotic reconstructions of Flame Dragon created by the Underground Kingdom and controlled by King Magma VII in a control room. Their design is a hybrid of a kentrosaurus and an ankylosaurus. Powers include fire homing meteors launched from the mouth, a spiked club tail that can cause fissures, swimming underwater and in lava, and swirling mouth flames.
* **Underground Kingdom Bat**: A highly aggressive breed of bats trained to attack prisoners under the command of Magma VII's men.
* **Underground Kingdom Carnivorous Plant**: A giant urchin-like plant used to prevent prisoners from escaping. Its only known power was long tentacles.
* **Underground Kingdom Tank Submarine**: Tank-like submarines used by the Underground Kingdom that were armed with a frontal drill and a torpedo launcher on each side of the hull. Notably they had treads and an underside saw, implying they could be used on land.
* **Monster Mushroom**: A species of mushroom that could grow as tall as trees that were dwelling in the diamond mines of the Underground Kingdom.
* **Rock Submarine**: Used by the Rock Legion, they were rock-like submarines for roll attacks. They were easily defeated by freezing gel.