The Wonder Launcher
Before now, you couldn't use items during Link Battles. In Pokémon Black Version and Pokémon White Version, the Wonder Launcher will let you do just that! The Wonder Launcher allows you to accumulate a certain number of points each turn, then exchange them for the ability to use items.
The Pokémon Musical!
Feel the beat in the Pokémon Musical! Dress Up your Pokémon with various Props, then watch it dance to the music. You can even play the Pokémon Musical with your friends! Just get up to four players together, each with their own Nintendo DS system and copy of Pokémon Black Version or Pokémon White Version. The source is here
I am Brandon, I have 1 goal as a pokemon trainer: To become the unbeatable unlike any other... I have already become the Champion of sinnoh... and am training currently in unova to beat the Champion their.