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 ...

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 ...

The Square Lock Boxes are just another of Resident Evil 4 Remake's many puzzles to lay your hands on priceless treasure that you'll pawn to buy ever-greater guns for blasting cultists and monsters.

We may receive a commission on purchases made from links. Having a place to hide spare keys is important for many people.

The primary way to earn a lot of money in Resident Evil 4 Remake is by discovering treasures and selling them to the Merchant. Some of them are hidden inside simple chests, but others are locked ...