The Secret Key is a Key Item used to open a secret room in Eterna City where Rotom's forms can be changed.
How do I get it?It'll be available via Nintendo Wi-Fi Connection April 20th through May 12th. It'll also be offered at participating "Toys 'R' Us" locations in the U.S., Canada and Puerto Rico April 19th through May 26th. Be sure to download it or go get it!
