"Mastering Weapons and Locations in Resident Evil 4 Remake"

The Resident Evil 4 remake features 16 Clockwork Castellans, which can be destroyed to earn a Primal Knife that is indestructible once fully upgraded. The locations of all 16 collectibles are listed, and they can be found throughout the game's chapters. Destroying all 16 Clockwork Castellans unlocks the Primal Knife, which can be purchased for 1,000 challenge points in the Extra Content Shop.