Nintendo last week announced that "Pokkén Tournament" will be available worldwide for Wii U on March 18. The Pokémon-themed fighting game, developed by Bandai Namco and published by Nintendo, will retail for $60. For the first production run of "Pokkén Tournament" copies, Nintendo is tossing in a Shadow Mewtwo amiibo card. When used with a Wii U gamepad, the amiibo card will unlock Shadow Mewtwo as a playable character. This year, the 20th anniversary of Pokémon, also will see the release of "Pokémon GO."