This monstrous transformation is Nightmare's master plan; he used the External HQ's own satelite dish to break the seal on Inetrnal God and release the long-dormant power. Nightmare is in control of the now-awakened beast, but does he truly understand how much power lies within?

The once droning taunts of Nightmare have been replaced with sudden silence. The beast, no longer bound by any curse, wears a new smile on its face... 

The true Endgame has taken over, eating away at Nightmare's soul and plotting to put an end to the universe...the same way he did hundreds of thousands of years ago!

When Dark was unwittingly corrupted by the fierce energy of negative corsitus, he became nothing short of a monster. As he began his mindless massacre, deep down he knew he let both his people and his two best friends down. And as he was aprehended and forcefully sealed into the internal he once called his own child, his soul began to disintegrate...

It may not be too late... Is there still hope? Is there still a way to set him free? Finish this, Internal Rift, and fulfill the prophecies of your creators!

Long ago, when the Galax were mining for ores, someone damaged the core (nicknamed Endgame Core) and the core released the Endgame Zero to protect itself from threats. Rumored to be more powerful than the Endgame Creature and made of an unknown substance.