The Wonderful 101 demo can now be downloaded from the EU eShop and it will set you back by 1GB, according to people who are downloading it right now. The game comes out on August 23rd in the EU and on September 15th in the US.
The game is made by Platinum Games and they are also developing Bayonetta 2 for the system. Developer Hideki Kamiya had some concerns about Wii U marketing but it looks like this latest demo will give a lot of people information about the game.
They have also released a new trailer which shows a lot of stuff from the game. You can check it out below.