Filb.de

Filb.de is a German Pokémon fan site run by Filb. It was affiliated with the late Pokémon Forever. It has a Pokémon wiki, the aptly-named PokéWiki, that is affiliated with Bulbapedia.

The Pokémon Emerald Secret Word Generator

A unique function of the site is its Pokémon Emerald Secret Word Generator.[1] The words it generates are input to make the sick girl in Rustboro laugh, causing her father to give the player new Pokémon storage system wallpapers. The generator works as follows:

Input the Trainer ID number of the Pokémon Emerald game. (ex. 04259)
Select the language of the game.
Using the links, select foreground colors, patterns, and icons, or just press the button to generate a random wallpaper.
Click on "Generate secret word" or "random wallpaper".
A special page will come up, displaying the Secret Word code (ex.WWBBCLpnJPcMVFG). Copy it down or commit it to memory, and follow the site instructions.

Filb.de also has a wallpaper generator for Pokémon Diamond and Pearl Versions.[2] After selecting a language and entering an ID number, clicking "Generate" will take viewers to a page full of wallpaper, with four words next to each one. Talking to the TV Producer in Jubilife TV and entering those four words in the order they are presented in will unlock a wallpaper, with 8 unlockable in all. Unlike in Emerald, Diamond and Pearl can hold all 8 wallpapers at once.