During the thirteenth Devil May Cry DMC Mission: Devil’s Dalliance, you can collect one secret key: Gold key. This secret key is fairly easy to find since it’s not hidden and doesn’t require a lot of jumps.
It can be found near the first Divinity Statue.
Secret Key 1 – Gold KeyLocation: Mission 13 – Devil’s Dalliance
Required ability/weapon: None
Additional Information: On the same platform where the first Divinity Statue is, turn back, and you will notice another platform in the distance. Jump on the platform, then turn to face the Divinity Statue. The platform with the Gold Key will be on your right side. A few Angel Lifts and Boosts are required in order to reach the platform with the Gold Key.