Opelucid City is unique in that its appearance is different between versions. In Pokémon Black and Black 2, the city is designed with a high-technological sheen using neon lights and colours in order to show how advanced it is. To contrast, in Pokémon White and White 2, the city is an old rustic town, clinging to the times of old..

Battle Houses (BW Only)
In the city, by the north exit, there is a house where you can battle trainers each day. This house has trainers which battle with the new styles of battling. In Black, the trainers battle in Rotation Battles while in White, the trainers battle in Triple Battles.

Move Tutor
In the city, there is a house where the other version's Gym Leader dwells, or Drayden in Black 2 & White 2. Here, they will teach your Dragon-type Pokémon, providing they have met certain happiness requirements, a special Dragon-type move.

Name	Type	Cat.	PP	Att.	Acc.	Effect
Draco Meteor			5	140	90	Comets are summoned down from the sky. The attack's recoil sharply reduces the user's Sp. Atk stat.

Gym (Black & White)
The Gym is the same in both versions, albeit with different Gym Leaders. Here, you need to navigate around the Gym in a maze, causing platforms resembling dragons to move and rotate based on how you land on them.

Gym (Black 2 & White 2)
The Gym in Black 2 & White 2 has you control a dragon as it climbs up the various storeys of the building, getting higher as you defeat more Pokémon.