Key Items are essential for progressing through the main story. They are typically acquired by solving puzzles, defeating bosses, or exploring specific areas. These items cannot be sold or discarded.
Examples of Key Items:
- Insignia Key: Unlocks doors in the Village Chief's Manor.
- False Eye: Acquired after defeating Bitores Méndez, used to open a specific gate.
- Lion Head, Goat Head, Snake Head: Emblems used to unlock a door in the Grand Hall.
- Biosensor Scope: Essential attachment for your rifle to see Plagas within Regeneradors.
- Keycards (Level 1, 2, 3): Used to access different security levels in the Island's Research Facility.
- Amber: A crucial component for the Plaga removal device.
Always check your inventory for key items if you're stuck on a puzzle or can't open a specific door.