ref: 21c266b950e5f4379bb7c3f605689b9070c8f48d
dir: /data/maps/headers/Route6.asm/
map_header Route6, ROUTE_6, OVERWORLD, NORTH | SOUTH connection north, SaffronCity, SAFFRON_CITY, -5 connection south, VermilionCity, VERMILION_CITY, -5 end_map_header