Kingdom Keys are a fictional type of weapon featured in the popular video game franchise Kingdom Hearts. The game series is a collaboration between Disney and Square Enix and features a unique storyline and characters that combine elements from the Disney universe and the Final Fantasy video game series.

In the Kingdom Hearts games, the main character Sora wields a Keyblade, which is a type of Kingdom Key. The Kingdom Keys are magical weapons that resemble a key and are used to fight against the game's enemies, the Heartless. Each Kingdom Key has its own unique design and abilities.

The Kingdom Keys are an important part of the game's lore, and are said to be the only weapons that can unlock the hearts of worlds and defeat the Heartless. The design of each Kingdom Key is often based on the world or character that it represents. For example, the Kingdom Key from the game's first installment is based on the iconic Disney character Mickey Mouse, while the Kingdom Key from the second installment is based on the character Roxas.

The Kingdom Keys are often sought after by the game's villains, who seek to use their power to unlock the hearts of worlds and gain control over them. Throughout the game series, Sora and his allies must protect the Kingdom Keys and use them to defeat the Heartless and other enemies.

Overall, the Kingdom Keys are a unique and iconic element of the Kingdom Hearts games, and are an important part of the game's storyline and gameplay mechanics.