| Where to get |
A-1 radio tower keys | D-3 sewer and D-3 sewer warehouse |
B-2 gate key | B-3 tunnel |
E-1 hospital rooftop key | E-1 hospital rooftop |
Warehouse key | E-1 Hospital 3rd floor warehouse room |
Subway key | E-1 Hospital 2nd floor West Corridor 2nd room |
Subway gate card key | E-2 shed |
F-2 subway | |
J-2 Dungeon Key | A-1 Radio Tower Recipe |
Blue Diamond Box Key | J-2 Dungeon 50 Blue Fragments of Spider |
Blue diamond box | D-2ruins, E-4 amusement park |