ref: a7dca30971a049a525e33bc43eaf2b18ce899c5e
dir: /data/wild/maps/RockTunnelB1F.asm/
TunnelMonsB2: db 15 ; grass encounter rate db 16, ZUBAT db 17, ZUBAT db 17, GEODUDE db 15, MACHOP db 16, GEODUDE db 18, ZUBAT db 17, MACHOP db 17, ONIX db 13, ONIX db 18, GEODUDE db 0 ; water encounter rate