Mario & Sonic is a jointventure between Nintendo and Sega where Nintendo holds the rights to one IP while Sega does for two (Sonic and the official license for the Olympic Games). The games are first party published in Japan, third party published in the rest of the world.

F-Zero would be a first party title, because the IP is fully owned by Nintendo.

Yes, this should be the case.

So true!

Brain Age, Nintendogs, neither were of much use for Nintendo.

Endless ocean was a piece of garbage, a totally useless IP imho, the Wii Sports games were demoes, Wii Music sucked, Wii Play was a bundle of 1$ games sold at 60$. Wii Fit has 0 value except wasted plastic. Trace Memory, who even remembers that?

There are a few others, but why spoil the thread?

(by the way, before ppl report me, this is pure sarcasm)

... except for the part that Wii Music sucked, right?   :P

Most of it sounds plausible, although that doesn't mean it's true. If it's purely fabricated, then it was at least done within reasonable limits.

The one odd piece that doesn't really fit into the puzzle is the tsunami wave of holiday titles for the Wii U and 3DS which somewhat contradicts the number of only four Wii U titles. It could mean that they are releasing a whole lot of 3DS titles though.

This rumor is kept so vague that most of it will probably be true.