ref: f37cf959c930ae9595f9f71ce0d9b17dcf5421d0 dir: /data/items/key_items.asm/
KeyItemBitfield: db %11110000 db %00000001 db %11110000 db %01001111 db %00000000 db %10011111 db %00000000 db %11000000 db %11110000 db %00111011 db %00000000