The first Pokemon Rumble U trailer shows how you'll use the Wii U NFC reader to bring your toy figures into the game.
Pokemon Rumble U is the first game to make use of the NFC reader on the Wii U GamePad and you can see Pikachu being transferred into the game in this trailer.
Pikachu is one of seven figures that will be available on launch day, all of which can be raised using coins obtained in the game. This will make them potentially stronger than the counterparts you capture in-game.
As for the game itself, Serebii reports that Pokemon fans in Japan will be able to buy download codes for the game from Pokemon Centres and download it from the Wii U eShop.
As with Super Pokemon Rumble, it's a game featuring toy Pokemon who battle each other but on Wii U, you'll be able to attack using the GamePad's touchscreen. You can also collect items as you progress, one of which can heal your character while another makes you big.
Each area features multiple levels and a boss battle.