ref: bbc257476f9aac8d04d75a8036d412caa8f7d515
dir: /data/maps/headers/CinnabarIsland.asm/
map_header CinnabarIsland, CINNABAR_ISLAND, OVERWORLD, NORTH | EAST connection north, Route21, ROUTE_21, 0 connection east, Route20, ROUTE_20, 0 end_map_header