Nirvash typeZERO

The Nirvash typeZERO, along with its pilots Eureka and Renton, is something of a visual symbol for Eureka Seven, and the LFO itself is complicit in many of the series' mysteries. It is the bio-mechanical hybrid: armor and control systems are built upon an organic humanoid "skeleton". At times, the Nirvash has responded to its pilots' commands without the use of its mechanical interface and even moves on its own to protect them; this is apparently not exclusive to Renton and Eureka, since Sumner Sturgeon was able to get the Nirvash to activate through verbal commands when he was forced to pilot it against his former teammates. Nirvash also has the ability to seemingly upgrade itself to suit its pilots, first in a minor fashion and in a much greater way later on. So there are known 3 types of Nirvash.

At first time, she was resemble on the others mecha. Nirvash's main weapons are a pair of boomerang knives. In addition to these, the Nirvash also features small chaff and flare launchers on its back to confuse missiles and dissuade followers. Apart from this, however, the Nirvash is relatively underpowered when compared to other LFOs, relying more on its high maneuverability and the skill of its pilots.
Though not technically a weapon, the Nirvash has the ability to trigger the Seven Swell, an event which generates a massive pillar of multi-colored trapar. Though its properties vary, it has the immediate effect of increasing the trapar count in the surrounding area, usually to the point that even a trapar-deprived area will become instantly flight-worthy.

After Eureka and Renton activate the true form of the Seven Swell phenomenon, the Nirvash's archetype grows and expands beyond its original frame, forcing a redesign to accommodates its new shape. The upgraded form of the Nirvash typeZERO is built according to the apparent will of the typeZERO and the physical growth of the archetype.

And then at last Nirvash evolves into a fully-formed humanoid LFO, patterned with mostly white limbs and the underlying green glow of a Compac Drive. Its left eye is the same color as Renton's, the right one being closed. It has no ref board, instead creating trapar from its own body to propel itself. It can also concentrate and fire trapar in a single, massive beam from its chest. After Renton uses the Nirvash to rescue Eureka, its right eye opens to reveal a Coralian-colored eye, much like Eureka's. However, in the last scene showing the Nirvash, the right eye has changed from the color of Eureka's pink eyes to the blue of Renton's eyes.

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