Pokemon HeartGold Version Cheats - Nintendo DS

cheat description		size
SAVEGAME FOR US VERSION Mar. 18, 2011		512KB
ACTION REPLAY CODES Apr. 23, 2010		12KB

Unlock Cards
Black Card - Earn 5 Stars.
Blue Card - Earn One Star.
Bronze Card - Earn Two Stars.
Gold Card - Earn Four Stars.
Silver Card - Earn Three Stars.

Unlock Pokewalker Maps
Rugged Road - Obtain 50 Watts.
Beautiful Beach - Obtain 200 Watts.
Suburban Area - Obtain 500 Watts.
Dim Cave - Obtain 1,000 Watts.
Blue Lake - Obtain 2,000 Watts.
Town Outskirts - Obtain 3,000 Watts.
Hoenn Field - Obtain 5,000 Watts and own the National Dex.
Icy Mountain Rd. - Obtain 30,000 Watts and own the National Dex.
Big Forest - Obtain 40,000 Watts and own the National Dex.
Beyond the Sea - Obtain a foreign pokemon via use of the GTS.
Night Sky's Edge - Trade a fateful-encounter Jirachi onto your HG or SS.
Noisy Forest - Available from the start.
Quiet Cave - Obtain 100,000 Watts and own the National Dex.
Rally - Wifi Event from January 29th to February 28th, 2010 (Japan).
Refreshing Field - Available from the start.
Resort - Obtain 80,000 Watts and own the National Dex.
Scary Cave - Obtain 20,000 Watts and own the National Dex.
Sightseeing - Wifi Event from November 14th (2009) to to January 11th (2010) in Japan and from April 17th to May 31st, 2010 in Korea.
Sinnoh Field - Obtain 25,000 Watts and own the National Dex.
Stormy Beach - Obtain 65,000 Watts and own the National Dex.
Tree House - Obtain 15,000 Watts and own the National Dex.
Volcano Path - Obtain 10,000 Watts and own the National Dex.
Warm Beach - Obtain 7,500 Watts and own the National Dex.
White Lake - Obtain 50,000 Watts and own the National Dex.
Winner's Path - Wifi Event from May 6th to June 25th, 2010.
Yellow Forest - Wifi Event from April 1st to May 5th, 2010.

National Pokédex
Complete the Johto Pokédex by seeing all 256 regional Pokémon, then talk to Professor Elm in his lab.