Video Game Logic - Sora plz

Sora: Soooo…How does a KeyBlade work?

Donald: It is a sword. It just happens to function like a key in very specific situations.

Goofy: Or it's a key all the time, and when you stick it in people, it unlocks their death.

Donald:…God Damn Man, I would love to live in your world for about ten minutes.

Well, it's true. Just because you have a key that can unlock it doesn't mean it's not locked.