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[[File:Key System menu.png|frame|The Key System menu]]
The '''Key System''' (Japanese: '''キーシステム''' ''Key System'') is a feature of the [[Unova Link]] in {{2v2|Black|White|2}}. It allows players to change the difficulty level of the game, switch between [[Black City]] and [[White Forest]], and change the Mystery Door in the [[Underground Ruins]]. They can be shared between players using the Unova Link, but players can only share the keys that are exclusive to their version.


'''Difficulty''' is a feature of the [[Unova Link]] introduced in [[Pokémon Black 2 and White 2 Versions]]. There are three different difficulties within the games: ''Assist'', ''Normal'', and ''Challenge''.
==Difficulty==
For the first time in a Pokémon game, there are different difficulty levels. There are three different modes: '''Easy Mode''' (Japanese: '''アシストモード''' ''Assist Mode''), '''Normal Mode''' (Japanese: '''ノーマルモード''' ''Normal Mode''), and '''Challenge Mode''' (Japanese: '''チャレンジモード''' ''Challenge Mode''). Only Normal Mode is unlocked by default; Easy Mode and Challenge Mode must be unlocked through the course of the games.


==Assist Mode==
Easy Mode decreases the opponents' {{wp|artificial intelligence}} and the [[level]] of their Pokémon. As such, battles become easier. This mode is unlocked after defeating the Champion in [[Pokémon Black and White Versions 2|Pokémon White 2]].
Assist Mode decreases the level of the opponents Pokémon and decreases their AI, making battles much easier. It can be unlocked after beating the Champion in Pokémon White 2.


==Normal Mode==
Challenge Mode increases some opponents' artificial intelligence and the level of their Pokémon, starting from 1 level and reaching 5 levels by the end of the game. [[Gym Leader]]s and [[Elite Four]] members will also have an extra Pokémon on their team, as well as different [[move]]sets and [[held item]]s. Their {{IV}}s are also increased to 30. This mode is unlocked after defeating the Champion in [[Pokémon Black and White Versions 2|Pokémon Black 2]].
This is the normal game play mode the player goes through. The Pokémon levels and opponents AI are what they would normally be in normal game play.


==Challenge Mode==
To unlock Easy Mode in Black 2 and Challenge Mode in White 2, the respective keys for each version needs to be transferred from a player with the opposite version via the [[Unova Link]].
Challenge Mode increases the level of the opponents Pokémon and increases their AI, making battles much harder. It can be unlocked after beating the Champion in Pokémon Black 2.
 
==City==
The version exclusive cities, [[Black City]] and [[White Forest]], are found by default in Black Version 2 and White Version 2, respectively. They can be unlocked in the opposite game if certain conditions are met.
 
After completing the five areas of [[Black Tower]] in Black 2, the player will be rewarded with the '''Tower Key''' (Japanese: '''まてんろうのカギ''' ''Skyscraper Key''). This can be transferred to White 2, which will unlock access to Black City. Likewise, after White 2 players have completed five areas of [[White Treehollow]], the '''Treehollow Key''' (Japanese: '''じゅどうのカギ''' ''Tree Hollow Key'') can be transferred to Black 2. This unlocks White Forest for Black 2 players.
 
Players of either version can use the [[Unova Link]] to switch between cities once both are unlocked. However, the cities cannot be switched if the player had saved their game within the current city.
 
==Mystery Door==
A mysterious door in [[Clay Tunnel]] gives access to the [[Underground Ruins]], where the [[legendary titans]] can be found, though only one titan will appear at a time, depending on which key is active. {{p|Regirock}} is the default Pokémon in both Black 2 and White 2. Upon catching Regirock, and not just defeating it or obtaining it from another game, Black 2 players are rewarded with the '''Iron Key''' (Japanese: '''くろがねのカギ''' ''Iron Key'') and White 2 players with the '''Iceberg Key''' (Japanese: '''ひょうざんのカギ''' ''Iceberg Key''); these allow access to {{p|Registeel}} and {{p|Regice}}, respectively.
 
While Registeel and Regice are exclusive to Black 2 and White 2 respectively, players of the opposite version games can obtain their final legendary titan by transferring the appropriate key through the Unova Link.
 
==In other languages==
{{langtable|color={{black 2 color}}|bordercolor={{white 2 color}}|textcolor=FFF
|fr=Trousseau
|de=Schlüsselsystem
|it=Sistema a chiave
|ko=키 시스템 ''Key System''
|es=Sistema Clave
}}
{{-}}
{{Project Games notice}}
 
[[Category:Pokémon Black 2 and White 2]]
[[Category:Game mechanics]]
 
[[de:Schlüsselsystem]]
[[ja:キーシステム]]
[[zh:钥匙系统]]

Revision as of 05:01, 14 July 2017

The Key System menu

The Key System (Japanese: キーシステム Key System) is a feature of the Unova Link in Black 2 and White 2. It allows players to change the difficulty level of the game, switch between Black City and White Forest, and change the Mystery Door in the Underground Ruins. They can be shared between players using the Unova Link, but players can only share the keys that are exclusive to their version.

Difficulty

For the first time in a Pokémon game, there are different difficulty levels. There are three different modes: Easy Mode (Japanese: アシストモード Assist Mode), Normal Mode (Japanese: ノーマルモード Normal Mode), and Challenge Mode (Japanese: チャレンジモード Challenge Mode). Only Normal Mode is unlocked by default; Easy Mode and Challenge Mode must be unlocked through the course of the games.

Easy Mode decreases the opponents' artificial intelligence and the level of their Pokémon. As such, battles become easier. This mode is unlocked after defeating the Champion in Pokémon White 2.

Challenge Mode increases some opponents' artificial intelligence and the level of their Pokémon, starting from 1 level and reaching 5 levels by the end of the game. Gym Leaders and Elite Four members will also have an extra Pokémon on their team, as well as different movesets and held items. Their IVs are also increased to 30. This mode is unlocked after defeating the Champion in Pokémon Black 2.

To unlock Easy Mode in Black 2 and Challenge Mode in White 2, the respective keys for each version needs to be transferred from a player with the opposite version via the Unova Link.

City

The version exclusive cities, Black City and White Forest, are found by default in Black Version 2 and White Version 2, respectively. They can be unlocked in the opposite game if certain conditions are met.

After completing the five areas of Black Tower in Black 2, the player will be rewarded with the Tower Key (Japanese: まてんろうのカギ Skyscraper Key). This can be transferred to White 2, which will unlock access to Black City. Likewise, after White 2 players have completed five areas of White Treehollow, the Treehollow Key (Japanese: じゅどうのカギ Tree Hollow Key) can be transferred to Black 2. This unlocks White Forest for Black 2 players.

Players of either version can use the Unova Link to switch between cities once both are unlocked. However, the cities cannot be switched if the player had saved their game within the current city.

Mystery Door

A mysterious door in Clay Tunnel gives access to the Underground Ruins, where the legendary titans can be found, though only one titan will appear at a time, depending on which key is active. Regirock is the default Pokémon in both Black 2 and White 2. Upon catching Regirock, and not just defeating it or obtaining it from another game, Black 2 players are rewarded with the Iron Key (Japanese: くろがねのカギ Iron Key) and White 2 players with the Iceberg Key (Japanese: ひょうざんのカギ Iceberg Key); these allow access to Registeel and Regice, respectively.

While Registeel and Regice are exclusive to Black 2 and White 2 respectively, players of the opposite version games can obtain their final legendary titan by transferring the appropriate key through the Unova Link.

In other languages

Language Title
France Flag.png French Trousseau
Germany Flag.png German Schlüsselsystem
Italy Flag.png Italian Sistema a chiave
South Korea Flag.png Korean 키 시스템 Key System
Spain Flag.png Spanish Sistema Clave


Project Games logo.png This game-related article is part of Project Games, a Bulbapedia project that aims to write comprehensive articles on the Pokémon games.