To aid in exploration, Heather obtains a flashlight and radio early on, the latter of which crackles when monsters are in proximity.[5] She can find "health" restoratives, such as first aid kits and energy drinks; beef jerky, used to lure monsters away from her path; and a range of firearms and melee weapons to fend off the monsters with.[3] She can also block and perform side-step maneuvers to avoid enemies.[2] Heather will also update any relevant maps of the area with notes on locked doors, inaccessible areas, and potential clues to puzzles.[6] While the floor plans of the various environments largely remains consistent between reality and the Otherworld, certain areas may be rendered inaccessible in the Otherworld, with barriers or bottomless gulfs appearing in the street, for example.[2] The game also features unlockable weapons and costumes.