Exhibition Key

The Exhibition Key is an item found in Quackenheim Museum. It is used to open the door to the valuables exhibit, where the Roquefort Diamonds (and Xuan) are.

How to obtain
Once you approach the Security Guard, he will accidentally let the key go. Once it has landed inside one of the meteorites, push the other one towards it, and it will drop to the ground.

How to use
Approach the door which the guard was blocking, and the door will open.