ref: f98a95b8ee2bb14f8fdb675e37c9876b8163b509
dir: /data/tilesets/underground_metatiles.bin/
*+:;,-<=EFUV 0144444444 44 444444 CDCDSTSTCDCDSTST "#23 QQQQQQQQ./>?./>?@ANOP]^_&'67 01 01@AAAPQQQPQQQAAABQQQRQQQR@AABPQQRPQQRPQQRPQQRPQQRPQQRPQQRPQQRPQQRPQQR@B@B()89()89