Pokemon HeartGold Version Cheates

Pokemon HeartGold Version and Pokemon SoulSilver Version return players to the scenic Johto region first introduced in the beloved original Pokemon Gold and Pokemon Silver games nearly a decade ago. The richly detailed adventure of Pokemon Gold and Pokemon Silver is now enhanced for the Nintendo DS and Nintendo DSi systems with updated graphics and sound, as well as new touch-screen features and a host of surprises. Pokemon HeartGold Version and Pokemon SoulSilver Version bring dozens of Pokemon characters back into the limelight for a new Pokemon generation - and longtime fans - to catch, train and battle.
                   

National Dex :

Unlockable	How to Unlock
National Dex	Beat the Elite Four once and go to the S.S Aqua ship in Olivine City to get the National dex.

Unlockable Pokewalker Maps:
There are over 20 Pokewalker maps currently available to anyone and everyone who owns them. The trick is obtaining Watts and getting the National Dex. Note that some of the following are event-only, so the Yellow Forest (for example), is unattainable right now.

Unlockable	How to Unlock
Beautiful Beach	Obtain 200 Watts
Beyond the Sea	Obtain a foreign pokemon via use of the GTS
Big Forest	Obtain 40,000 Watts and own the National Dex
Blue Lake	Obtain 2,000 Watts
Dim Cave	Obtain 1,000 Watts
Hoenn Field	Obtain 5,000 Watts and own the National Dex
Icy Mountain Rd.	Obtain 30,000 Watts and own the National Dex
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
Rugged Road	Obtain 50 Watts
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
Suburban Area	Obtain 500 Watts
Town Outskirts	Obtain 3,000 Watts
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