ref: 7c01509b6b69b4dc33f5d739589d50f26ffd65b0 dir: /data/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