Pokémon Black & White - Version Changes - Black City & White Forest

Black City Black City is a city that is completely exclusive to Pokémon Black. This city will feature many characters and tasks that will not occur in Pokémon White. In it, you'll find numerous trainers to battle and numerous shops selling items.
White Forest White Forest is a city that is completely exclusive to Pokémon White. Unlike Black City, White Forest will have a variety of wild Pokémon as well as characters and tasks that will not occur in Pokémon Black. These include 32 Pokémon unavailable in Black and a variety of items.

Black City & White Forest both focus on the technology versus nature aspect of the games. As such, Pokémon Black has numerous trainers with fully evolved Pokémon while Pokémon White has their base form as wild in Level 5. When you get to the area, you will notice you only have ccess to a certain amount of these. The Pokémon you will find will change when you encounter others using the Entralink feature within the games. The Pokémon you encounter in these areas is set by your game randomly when you begin.

Over time, if you fiddle with the clock too much, the areas will become deserted with no buildings and trainers in Black City and no grass in White Forest. To fix this, you'll need to go into Entralink with your friends and try and get people to come to your areas. This can only be done between Black City & White Forest. You will not be able to get other trainers to go from two White Forests or two Black Cities. You can only have up to 10 characters in your area at any one time
Each character you encounter has a set value which determines the rate in which they leave. In order to keep them there, you'll need to talk to the inhabitants often and allow them to stay. Once the points hit 0, the character will leave. The points will be detailled below but here is a table stating the rate in which the trainers will stay or leave

Function	Point Value
Day Passes	-5 per day
Enter the Area	+3
Battle the Trainers Black City	+7
Talk to the characters White Forest	+10

Pokémon, Trainers & Items

The characters within the area completely control the Pokémon and items you will encounter within the area. This allows for every experience to be different. In order to change the Pokémon and/or trainers you encounter, you need to connect to Entralink with a friend. Once you have done this, interact with the trainers in Black City or the characters in White Forest while in the Entralink and they will begin migrating into your version. If you go to Black City through Entralink while playing White, the base form Pokémon of the trainers you speak to will appear in White Forest and if you go to White Forest while playing Pokémon Black, the wild Pokémon you encounter in the game will cause the trainer with the fully evolved forms to appear in your game.
The items which are seen can be purchased in the market of Black City at any time while the characters are in your city. However, in White Forest, a random amount of items is set every day from 0 to the number of characters you have in White Forest so you can theoretically go days without them appearing on the ground.
The Pokémon encountered within White Forest cannot be Repelled and are all set at Level 5.

Character	Black City			White Forest			Leaving Value
Character	Battleable Pokémon		Market Item	Grass Pokémon	Water Pokémon	Item	Black	White
Backpacker Emi エミ（バックパッカー）	Blissey Lv. 30		Fluffy Tail - 15,000	Happiny	Corphish	Timer Ball	30	70
Pokémon Ranger Eliza エリザ（ポケモンレンジャー）	Flygon Lv. 61		Blue Shard - 3,000	Trapinch	Lotad	Blue Shard	70	30
Hiker Gene ガクト（やまおとこ）	Aggron Lv. 40		Big Mushroom - 20,000	Aron	Surskit	Big Mushroom	30	70
Scientist Marie カズホ（けんきゅういん）	Magnezone Lv. 50		Green Shard - 3000	Magnemite	Lotad	Green Shard	70	30
Backpacker Carlos カルロス（バックパッカー）	Staraptor Lv. 30		Oval Stone - 10000	Starly	Corphish	Oval Stone	70	30
Battle Girl Karenna カレン（バトルガール）	Slaking Lv. 56		Leaf Stone - 10000	Slakoth	Lotad	Leaf Stone	30	70
Socialite Grace グレース（マダム）	Salamence Lv. 40		Dawn Stone - 10000	Bagon	Wooper	Dawn Stone	20	30
Veteran Ken ケン（ベテラントレーナー）	Nidoking Lv. 67		Thunder Stone - 10000	Nidoran♂	Corphish	Thunder Stone	70	30
Clerk Britney サトコ（OL）	Jumpluff Lv. 40		Rare Bone - 30000	Hoppip	Surskit	Rare Bone	30	70
Scientist Jacques サトル（けんきゅういん）	Nidoqueen Lv. 50		Poke Doll - 18000	Nidoran♀	Lotad	Dive Ball	30	70
Lady Lynette シオリ（おじょうさま）	Vileplume Lv. 34	Bellossom Lv. 34	Heart Scale - 10000	Oddish	Surskit	Heart Scale	70	30
Schoolkid Leo シュウサク（じゅくがえり）	Pidgeot Lv. 45		Stardust - 10000	Pidgey	Surskit	Stardust	70	30
Ace Trainer Vincent ジュンイチ（エリートトレーナー）	Magmortar Lv. 62		Fire Stone - 10000	Magby	Corphish	Fire Stone	30	70
Pokemon Ranger Ralph ソウスケ（ポケモンレンジャー）	Ludicolo Lv. 61		Water Stone - 10000	Lotad	Surskit	Water Stone	30	70
Black Belt Ryder タクマ（カラテおう）	Machamp Lv. 56		Nugget - 50000	Machop	Lotad	Quick Ball	70	30
Roughneck Dave タクロウ（スキンヘッズ）	Gengar Lv. 30		Tinymushroom - 3000	Gastly	Surskit	Tinymushroom	70	30
Gentleman Frederic ツネカズ（ジェントルマン）	Roserade Lv. 40		Luxury Ball - 50000	Budew	Wooper	Honey	30	20
Schoolkid Shane トシノブ（じゅくがえり）	Rhyperior Lv. 45		Berry Juice - 1500	Rhyhorn	Surskit	Net Ball	30	70
Clerk Doug トモタカ（ビジネスマン）	Luxray Lv. 40		Red Shard - 3000	Shinx	Lotad	Red Shard	70	30
Rich Boy Pierce ヒトシ（おぼっちゃま）	Ampharos Lv. 35		Poke Ball - 10000	Mareep	Surskit	Poke Ball	30	70
Backpacker Herman ヒロアキ（バックパッカー）	Porygon-Z Lv. 30		Dusk Stone - 10000	Porygon	Wooper	Dusk Stone	80	20
Schoolkid Silvia ヒロコ（じゅくがえり）	Beautifly Lv. 44	Dustox Lv. 44	Pearl - 6000	Wurmple	Surskit	Poke Ball	30	70
Clerk Collin ヒロノリ（ビジネスマン）	Alakazam Lv. 40		Yellow Shard - 3000	Abra	Lotad	Yellow Shard	30	70
Backpacker Molly ヒロミ（バックパッカー）	Azumarill Lv. 30		Shiny Stone - 10000	Azurill	Lotad	Shiny Stone	20	80
Youngster Robbie マサオ（たんぱんこぞう）	Electivire Lv. 30		Fresh Water - 1000	Elekid	Surskit	Great Ball	70	30
Lass Miki ミキ（ミニスカート）	Togekiss Lv. 30		Max Repel - 5500	Togepi	Surskit	Repeat Ball	30	70
Nursery Aide Miho ミホ（ほいくし）	Shiftry Lv. 40		Big Pearl - 38000	Seedot	Surskit	Ultra Ball	70	30
Clerk Piper ユミコ（OL）	Victreebel Lv. 40		Star Piece - 48000	Bellsprout	Surskit	Nest Ball	70	30
Ace Trainer Lena レナ（エリートトレーナー）	Gardevoir Lv. 61	Gallade Lv. 61	Sun Stone - 10000	Ralts	Wooper	Sun Stone	20	80
Veteran Rosa ローザ（ベテラントレーナー）	Exploud Lv. 67		Moon Stone - 10000	Whismur	Lotad	Moon Stone	80	20

Rewards

In addition to the above, there are a variety of rewards for defeating the trainers or capturing the Pokémon within the forest, depending upon your version
In the Black City market, there is a Market Boss who will give you a reward for the amount of trainers you have beaten during the day
In White Forest, the mayor will ask to see a certain Pokémon. Show him this Pokémon and you will be able to get one of several potential berries

Picture

Name

Effect

Chesto Berry

A Poffin ingredient. It may be used or held by a Pokémon to recover from sleep.

Pecha Berry

A Poffin ingredient. It may be used or held by a Pokémon to recover from poison.

Lum Berry

A Poffin ingredient. It may be used or held by a Pokémon to recover from any status problem.

Leppa Berry

A Poffin ingredient. It may be used or held by a Pokémon to restore a move’s PP by 10.

Bluk Berry

A Poffin ingredient. Bury it in soft soil to grow a Bluk Plant.

Trainers

Finally, there are also several trainers in both Black City & White Forest. You can only battle these trainers once but they showcase the Rotational Battles in Black and Triple Battles in White. They are as follows;

Black City