A Keyblade is a fictional weapon from the video game series Kingdom Hearts, developed by Square Enix. It resembles a large key and is used by characters known as Keyblade wielders to combat darkness and protect various worlds. Each Keyblade has unique abilities and designs, often reflecting the personality or story of its wielder. In the series, the Keyblade is not just a weapon; it also serves as a tool to unlock paths between different realms. It can open doors to new worlds and is essential for sealing them from darkness. The main protagonist, Sora, is one of the most notable Keyblade wielders in the franchise.