- Secret box wallpapers and Pokemon eggs
Go to Violet City Pokemon Center. Tell the man next to the PC certain words when he asks you for your opinion. Use this website to generate these words. This will unlock special box wallpapers and Pokemon eggs in your game.

- Hidden items in Ruins Of Alph
In the same rooms where you have to complete a picture puzzle of Kabuto, Aerodactyl, Ho-Oh, or Omanyte, there is a plaque that has a word that is spelled using Unowns. Finish the following steps to get the hidden items:


- Trainer Card colors
Successfully complete the indicated task to unlock the corresponding color. You can earn stars by completing the following tasks: defeating the Elite Four, finding all Shining Leaves, and capturing all 493 Pokemon (not including event-only Pokemon).

Gold Card	Gain four stars.
Blue Card	Gain one star.
Bronze Card	Gain two stars.
Silver Card	Gain three stars.
Black Card	Gain five stars.

- National Pokedex
Overcome the Elite Four, then go to the S.S. Aqua ship in Olivine City to get the National Pokedex.

- Game Boy references
Enter the Celadon Condominiums next to the Pokemon Center in Celadon City. Use the elevator to get to the third floor. When you exit, your friend will tell you about the GB Sounds. Talk to the man next to the globe after collecting all of the Kanto badges to get the GB Sounds Device.


Enable the 'GB Sounds' option before entering the Union room, then trade with someone, and it will play the classic trade music.

- In-game reset
While you are playing this game, press L + R + Begin + Select.

- Pokewalker maps
Successfully complete the indicated task to unlock the corresponding Pokewalker map:

Scary Cave	Get 20,000 Watts and the National Dex.
Icy Mountain Rd.	Get 30,000 Watts and the National Dex.
Dim Cave	Get 1,000 Watts.
Beyond the Sea	Trade for an International Pokemon in the GTS in Goldenrod City.
Quiet Cave	Get 100,000 Watts and the National Dex.
Sightseeing	Participated in the Wi-Fi Event during November 14th, 2009 through to January 11th, 2010 in Japan, and from April 17th to May 31st, 2010 in Korea.
Beautiful Beach	Get 200 Watts.
Rugged Road	Get 50 Watts.
Be victorious inner's Path	Participated in the Wi-Fi Event from May 6th to June 25th, 2010.
Big Forest	Get 40,000 Watts and the National Dex.
Blue Lake	Get 2,000 Watts.
Suburban Area	Get 500 Watts.
Night Sky's Edge	Trade a fateful-encounter Jirachi onto Pokemon HeartGold or SoulSilver.
Resort	Get 80,000 Watts and the National Dex.
Stormy Beach	Get 65,000 Watts and the National Dex.
The Resort	Get 80,000 Watts and the National Dex.
Rally	Participated in the Wi-Fi Event during January 29th through February 28th, 2010 in Japan.
Warm Beach	Get 7,500 Watts and the National Dex.
Tree House	Get 15,000 Watts and the National Dex.
White Lake	Get 50,000 Watts and the National Dex.
Sinnoh Field	Get 25,000 Watts and the National Dex.
Town Outskirts	Get 3,000 Watts.
Hoenn Field	Get 5,000 Watts and the National Dex.
Volcano Path	Get 10,000 Watts and the National Dex.
Yellow Forest	Participated in the Wi-Fi Event from April 1st to May 5th, 2010.

- ! and ? Unown
Acquire all other twenty six Unown (A through Z), and the ! and ? Unown will appear in the Hall Entrance.