In Kingdom Hearts III, it starts out as a dark cloud in-hand and the Keyblade 'stretches' out in crackling dark energy. When the Oblivion is summoned in Kingdom Hearts II, black smoke and violet sparks surround it. The tip of the blade where the chain ends now has the grey portion less intricately designed. The handguard is now wider with the wing design pushed further up. In Kingdom Hearts III, the portion of the blade with the chain is now visibly hollow, allowing see-through gaps in the chain. The diamond in its hilt also resembles the diamond in the original logo of Hollow Bastion. Like the Oathkeeper, the Oblivion's blade is hollow, but it has a chain passing through the gap. The Keychain's token is a black version of Sora's crown icon. The teeth are in the shape of the Kanji for 'darkness' (闇). The hilt guard is comprised of two bat-like wings extending downward. Oblivion is similar in shape to the Kingdom Key, though is black and has a longer reach. As such, the Keychain is a black version of Sora's crown necklace. Originally, the Oblivion was planned to be given to Sora by Riku, similar to how Kairi gives Sora the Oathkeeper. 4.1 Kingdom Hearts 3D: Dream Drop Distance.

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