

The three remaining heroes use the Pure Hearts to negate much of Super Dimentio's Chaos Heart-derived power, allowing them to defeat him and free Luigi.

Unfortunately for Dimentio, Count Bleck is able to recreate the Pure Hearts through his love for Tippi - revealed to be Lady Timpani in a new form - and his loyal minions. As he shrugged off the heroes' attacks, Super Dimentio used his new powers to accelerate The Void's expansion, rapidly consuming all worlds. Along with a brainwashed Luigi, Dimentio merges with the Chaos Heart in order to form Super Dimentio - since Luigi was the ideal host for the Chaos Heart, its power was magnified to far greater proportions than the power Count Bleck had wielded. At this point, Dimentio appeared and revealed that he had taken control of the Chaos Heart, planning to use its power to remake the universe in his image. However, despite Count Bleck's defeat, the Chaos Heart remained active. In response, Merlon gathers four heroes to collect the Pure Hearts and defeat Count Bleck, which they eventually accomplish by using the Pure Hearts to destroy the impenetrable barrier protecting Count Bleck. Unbeknownst to his minions aside from Dimentio, however, Bleck had no intention of remaking the universe his final goal was to perish along with the rest of creation (a fact he kept secret from his subordinates in order to preserve their hope). The Chaos Heart was first controlled by Count Bleck, who wanted to destroy all worlds and supposedly create new ones due to the disappearance of his love, Lady Timpani.

As the Chaos Heart empowers its controller to the point of invincibility, the Pure Hearts are necessary to overcome it. The Chaos Heart can only be destroyed by either killing the controller, or with the concentrated power of love embodied by the Purity Heart. Once summoned, it created an interdimensional rift known as The Void, which would eventually engulf all dimensions. As written in the Dark Prognosticus, the Chaos Heart was unleashed by the marriage of a furious monster king and a fair and lovely princess.
