Hi, I have a savegame of Pokémon Black that has connected to the dream world. No cheats, but the pokémon I sent to the dream world was lost forever when the system shut down (my poor Victini TTwTT)
It is pretty early in the game (after getting to the city that has the port to go to liberty island) but is a from an emulator. If there's no problem with that I can give it to you.