Pokemon HeartGold Nintendo DS Unlockables

National Dex

• Beat the Elite Four once and go to the S.S Aqua ship in Olivine City to get the National dex.
  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.

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