ok, i tried to translate (to the best of my crappy engrish) what i read from KF. these are only 2 paragraphs i extracted because i think it addresses what most people here want to know about, i.e. the "invincible" status of the LED Mirage, and the RAID GIG...
pardon my language skills
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LED Mirage
Mirage Knight's "robot", and also the most powerful most evil weapon in the cluster.
Its name "LED Mirage", means "the leading, most powerful Mirage", as in (lead, led, led).
The whole of the cluster is exclaimed over the beautiful white semi-transparent glowing armor and silver-chrome plated armor, as it was finally revealed in 3007, its power is unparalleled in human history, even historians in later generations do not categorized this "mecha" as a MH. Its purpose is to only to "massacre and destroy", LED Mirages' only "intellect" (program) is to receive commands from the headdliner and fatima, to battle, destroy, massacre, ravage, destroy, its beautiful eyes only to seek out targets to destroy. Even if it does not have a headdliner and fatima, this MH will still execute its "massacre and destroy" program as its basic instinct. This is why the MH is too dangerous to be used in normal MH combat, and so its sorties are very limited. In the combat zone, the only things that it will recognise as "friendlies", are the other LED Mirages in its RAID GIG formation, and all objects with the Blood Cross emblem. If a LED Mirage were to be activated in the Float Temple, it is said that only the Vermillion Tower which has the Blood Cross emblem will be left untouched, all others including the city will be turned to ashes. The only way to (barely) suppress the LED Mirage's "instinct" is its Fatima and headdliner.
"Merely 15 are used to suppress all planets in the whole of the cluster"
These words described all there is about the LED Mirage.
When this MH appears, opponents can only do one thing: "To escape with all of one's abilities", if there are any headdliners who wished to stand in the way of this MH, that will be enough to become a legend.
If the power of the LED Mirage is to be gauged in numbers, it will be like this: if the LED Mirage is at 100, then all other weapons are at 0. The thinking that "there is no absolute 0% in this world" only exists in our world. No matter what circumstances, what situation, or whatever reason -- yes, even if the white demon is damaged, chances to defeat the LED Mirage is totally non-existent, which means it is 0%. Bang Doll is 0, Schpeltor is 0, even Jagd Mirage or KOG is 0. If you think that by hardwork, resourcefulness or luck you may have a chance to win, then it is because you have read too many mangas from our world. In the view of this MH, it is absolutely impossible that there is "a chance of winning".
This fact remains true in the course of history, up till JC 7777, no MH, mecha, cyborg, devils, gods, weapons, living beings, alien beings, beings from alternate dimensions are able to defeat this MH.
"Without defeat", this is the reason why this MH is called "god of destruction".
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RAID GIG
If Amaterasu's ignition seal is inconsistent with the headdliner's and fatima's, LED Mirage will be completely immobile. Also, LED Mirage will recognise the fatima, so for example Alecto can only operate LED Mirage with the serial number 0015. However, because Amaterasu and Lachesis pilots the commanding MH KOG, they will not be restricted, and will be able to mobilise all LED Mirages. Similarly, Busctual is not restricted.
The most special part about its Fatima cockpit is something called "Silical Cone" which are cables connecting the cockpit and the fatima, and this is to allow for 6 - 15 LED Mirages to be able to use its special equipment - the RAID GIG. Each fatima's head crystal will simultaneously receive information from other fatimas in their LED Mirages. That is to say, all LED Mirages in the RAID GIG is controlled by multiple fatimas.
The LED Mirages' headdliners are therefore receiving supplementary assistance from multiple other fatimas in addition to his own fatima. Its controls and mobility is said to be extremely close to what the headdliners are looking for - "to completely act out his own actions".
However, even if the RAID GIG is switched off, the performance of a lone LED Mirage is not much different. RAID GIG combat is for maintaining control during group battles where it is chaotic and disorderly, and also to allow for the headdliners to be more efficient, thus the special calculation program is created.
All these systems for the LED Mirage is for the purpose of tackling battles beyond MH combats, therefore it is unnecessary for MH from other nations or other Mirage MHs.
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P.S > if u've seen Alecto's Plastic Style suit, you'll realise there are many cables on her suit, which are used for the RAID GIG.