What is the key-shaped weapon used by Sora called?

The key-shaped weapon used by Sora is called the Keyblade. It resembles an oversized key with a blade-like shaft, and in Kingdom Hearts it is a magical weapon capable of defeating Heartless and sealing the keyholes of worlds.

Sora first receives the Keyblade after the Heartless attack Destiny Islands. Although the weapon initially chooses him, the story later reveals that Riku was its intended wielder. Sora ultimately keeps the Keyblade because his courage, loyalty, and strength of heart allow him to reclaim it.

The Keyblade is more than a sword with a decorative handle. It can unlock or lock doors, open paths between worlds, and interact with the hearts of people and places. Its appearance can also change through special keychains. These alter the weapon’s form and abilities, which is why Sora may wield designs associated with different Disney worlds. Oblivion is one such Keyblade form, while Keychains are accessories that modify the weapon rather than the weapon’s name itself.