July English Trailer (New!)
A new trailer for the English version of the game, showing off some of the Pokemon World Tournament, and also revealing Achroma's English name: Colress.
The English-version of one of the first gameplay trailers revealed, showing not too much, other than Homika's English name — Roxie.
Trailer on Nintendo Channel for Wii
This video shows off some more gameplay of Black 2 and White 2, as well as some extra gameplay from the Dream Radar.
Pokemon Smash Trailers + Pokestar Studios footage
These two videos are little mini trailers. What's most exciting about them is seeing the screenshot of Ghetsis with Kyurem and N with Zekrom in the first video. That's pretty amazing!
Additionally, here is some footage that was shown on Pokemon Smash showing Pokestar Studios in action. Interesting!
AWESOME animated promotional teaser trailer!
This video was released on the Japanese Pokemon Company YouTube page as a promotion for Black 2 and White 2. That is one HECK OF A LONG PROMOTION, but, as a lot of Pokemon fans agree, it is perhaps the best 4 minutes 50 seconds they've spent watching something. If this doesn't get you excited for Black 2 and White 2, I don't know what will.
It's unlikely they're going to turn this into an anime series, but it does offer a lot of action and raises plenty of questions about the setting of Black 2 and White 2. Give it a watch and reflect on it.
Pokemon Smash Trailer #1: Beginning
This gameplay trailer was the one shown on Pokemon Smash and shows some of the early gameplay throughout Aspertia City. It looks great!
You can see battling against your rival, battling against a wild Azurill, and a wild Lillipup.
Pokemon Smash Trailer #2: Reshiram vs. Black Kyurem
This video is also from Pokemon Smash and shows a battle of Reshiram vs. Black Kyurem. Additionally, take note of the HP bar area, which is colored white in this. Could it change colors in the different versions? You can see it later as Black when facing off against White Kyurem.
You also get a chance to see Freeze Shock and Ice Burn in action.
Official Gameplay Trailer
This is the official video shown as the trailer on the official Pokemon Japanese website. It shows off some of the gameplay and the different locations you can visit. There's also a clip of the 15th Movie at the very end, showing off the Pokemon Keldeo, which will be available in all four Generation V versions in Japan (and should be available internationally as well, most likely like Victini was).