Features:

The Key Link is the first link system in the game and allows for players to connect between Black 2 games and White 2 games, as well as Black 2 to Black 2 and so forth. During the progress of the game, you will unlock certain keys, these keys will give you a variety of new features in the game from different areas to difficulty shifts. One of the core aspects of the Key Link feature is that when you unlock the keys, you can send them to your friends regardless of how far through the game they are. As such, if you have a friend who struggles to get through the game, you can send them the Easy Mode key and help them out. Activation

However, this feature is not just for sending to other players. Once you unlock the keys, you have full access to to their features within your own game, without the need to send them to others. Below are the features that can be unlocked. Mode Change Name Feature Standard Method of Obtaining Easy Mode Lowers the opponent's AI and Pokémon levels Defeat the Champion Normal Mode Standard gameplay From Beginning Challenge Mode Raises the opponent's AI and Pokémon levels Defeat the Champion Area Change Black City - Tower Key Changes area to Black City Black 2 Beginning White Forest - Forest Key Changes area to White Forest White 2 Beginning Ruin Change Rock Peak Key Underground Ruins designed for Regirock From Beginning Iron Key Underground Ruins designed for Registeel Capture Regirock (Black 2) Iceberg Key Underground Ruins designed for Regice Capture Regirock (White 2) As you load your save file, it will tell you what features you have turned on that deviate from the default. Click here for further details on Easy Mode & Challenge Mode