I don't no how to get the old sea map or chart but you must have fire or leaf
In FireRed or LeafGreen, you have to beat the Elite Four before you can battle Mewtwo. You'll find it in the Cerulean Cave in the northwest corner of Cerulean City. You have to cross water, move boulders, and smash rocks, so bring Pokemon that can use Surf, Strength, and Rock Smash. Mewtwo is level 70.
To transfer the sea chart in the temple to your map, open the map up so your map is on the bottom screen and the map you want to copy is on the top. Close your DS. Now open it again. You just transferred the sea chart.
mew its in mt.mew you half to have the old sea chart
find the sea chart that matches the other sea chart upside down and close the ds. and it will be transferred on your map.
'Chart', as in, a sea map.
chart
in any game mew can be found in a glitch,in emerald you need the event item old sea map that will allow you to go to faraway island and mewtwo can be found in kanto in cerulean cave
You can't find the Old Sea Chart in FireRed.
all you have to do is go to any poke mart and on the side of the counter there is a chart and you put LINK TOGETHER WITH ALL
What_is_the_AR_code_for_the_old_sea_map_or_chart_in_pokemon_platinum
Mix records or go to a Nintendo event
It's called the chart because u can see on the chart and yea it's just called a chart
A map or chart showing depths of water, the nature of the bottom, contours of the bottom and coastline, and the tides and currents in sea.