This link leads to a notepad file (.txt) that contains some codes that I recently made. They include:
All Bag Items
All Medical Items
All 94 TMs
All Berries
Max Game Time
Begin on US Release
Every code gives legal items only, and no item that has yet to be released, EXCEPT for the All Berries code. They all generate the items with reasonable amounts, and only the useful items. The All Medical Items code also includes wings!
All codes are in this file, and can be added to any Action Replay device for the DS. They work on both Pokémon Black and White, but only for the English versions. They require the L and R buttons to activate. I will add more codes as I continue research.
Once again, the link is here, and I hope you get a lot of use out of these codes! Check back every now and then to see if new codes have been added.
IMPORTANT: Please view the notes included with the codes, as some are necessary to avoid potentially corrupting your game.
Black_White_Codes.txt