The Resident Evil 4 square lock boxes in the Castle section need a special key called a Cubic Device, and you won't be able to open them without it. It's definitely worth doing - those five square ...

As you explore the dangerous halls of the Castle, it won't be long until you stumble upon Square Lock Boxes that can only be opened with a special key known as a Cubic Device. Each of the five Square ...

While roaming around the Castle, you’ll occasionally come across Square Lock Boxes with very valuable treasures inside. Unfortunately, though, you need a special key to unlock them. In this section of ...