Changes

The {{nihongo|Perfect Core|パーフェクトコア}} is the magical entity that holds [[Vestroia]]'s balance and is the center plot in [[Bakugan Battle Brawlers]]. The [[Battle Brawlers]] protected it from [[Naga]] who wanted to use its power to rule the universe. In the process of the series, [[Drago (Dan Kuso)|Drago]] has been learning about his origins (and that of the Bakugan species) and has acquired more fragments for the Core. In [[Bakugan Battle Brawlers: New Vestroia]], [[Spectra Phantom|Spectra]] wanted to capture the Perfect Core energy from [[Drago (Dan Kuso)|Drago]] to make [[Helios MK2|Helios]] the Ultimate Bakugan.

When [[Drago (Dan Kuso)|Drago]] absorbed the [[Infinity Core]] and the [[Silent Core]], he became completely the Ultimate Bakugan: the '''Perfect Dragonoid''', and had complete control over all six [[Attributes]]. But then, following [[Wavern]]'s spirit, he went to the center of Vestroia and then sacrificed himself to fuse both energies and became the new Core.