Today, February 25th, Between 4:00 PM to 5:00 PM Pacific time, Nintendo will be doing maintenance work on Wii U’s Nintendo Network. It will affect the Wii U, and the following games: Ninja Gaiden 3: Razor’s Edge and Warriors Orochi 3 Hyper. Nintendo says that during the maintenance, parts of the Nintendo Network service might be unavailable. Not all Nintendo Network features will be affected and for the most part, it should function normally. Nintendo is working hard to improve and speed up the various Wii U online services.