Black City (Black 2)
Black City has changed a bit from the original Pokemon Black. There's still a Pokemon Center and a few places to visit. Now the main place to visit is the Black Tower, which is similar to Mt. Battle in Pokemon Colosseum or Pokemon XD in the sense that you have to fight through an area, but don't get to heal until you reach a new area.
As you pass through the areas, you'll unlock shops where you can buy things every day in Black City.
- After clearing Area 2, you can buy a Thunderstone on weekdays and a Protector on weekends for $10,000.
- After clearing Area 5, you can buy a Fire Stone on weekdays and a Metal Coat on weekends for $20,000.
- After clearing Area 8, you can buy a Dusk Stone on weekdays and an Up-Grade on weekends for $40,000.
- After clearing Area 10, you can buy a Dawn Stone on weekdays and a Dubious Disc on weekends for $60,000.
All of those items can only be purchased once per day.
Inside the Black Tower, though, is where your real challenge lies...