[1] Similar to Transformers: Armada, the show was first broadcast in the U.S. instead of Japan (also, the Japanese version contained improvements added to the episodes over the time between releases)[citation needed].

The series focuses on a delivery boy named RD who works for a company called Mach Storm, based in Blue City, a metropolis on Planet Zi's Eastern Continent.

The series initially focuses on the rivalry between the Mach Storm and Savage Hammer teams, as well as other battles.

As the series progresses, RD and the rest of Mach Storm become aware of a conspiracy to take control of Blue City, and fight to stop it.

A Zi-Fighter's license is a glove for the right hand (that leaves only the middle, ring and small fingers bare) with a mechanical device on the back.

The cancellation of Hasbro's 'New American Release' model line is also believed to have contributed to the removal of Fuzors from the air.

The new studio handling the animation resulted in a different art style from what was seen in the previous series, in terms of both human character design and Zoid CG renderings.

A large proportion of the background objects and scenery were created from 3D models, and many large-scale scenes, particularly those in the 'Zoids Battle Arena', were rendered entirely in 3D.

Most of the first thirteen episodes feature differences in footage, usually minor changes through the addition of extra visual effects during fusion sequences.

The most notable exception is episode 2, where they scrapped the original version and made a completely new one which was almost entirely different from its American counterpart.