The Earth Core is a Pureblood Heartless that appears in Kingdom Hearts 0.2 Birth by Sleep -A fragmentary passage- and Kingdom Hearts III.


The Earth Core bears a striking resemblance to the Darkball; however, it lacks the Darkball's tentacles, and appears slightly bigger in size, taking on a more oval shape physically than a circular. It has multiple brown spikes sprouting from its back, making it resemble a porcupine, which it can use to deflect attacks.

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