you have to
in mossdeep city
in mossdeep city
not
In Pokemon Ruby/Sapphire/Emerald in Mossdeep City.
You have to surf there first. From Lilycove City, you surf to the right till you reach Mossdeep City.
Shoal Cave above Mossdeep City
Shoal Cave, north Mossdeep City
How do you unlock the door in the old man's house who lives on mossdeep city on Pokemon Ruby
There's the space center in mossdeep city if that's what you mean.
with your foot
Mossdeep cityit is in mossdeep
The super rod in pokemon ruby, sapphire and emerald is in mossdeep city.