Why? I see no reasons for Nintendo to go third party: a Third party company is a company that make games, and Nintendo just stopped quite time ago to make games, they only do hardware (new switch colors, amiibo) and full priced Wii U remastereds. So, there is no reason for them to go third party, since they are no longer a software company, they are more like Bluepoint Studio. Paper Mario is the second and last new Nintendo first party game for this year, for a platform (the Switch) that is doubling PS4 sales since at least a year. This is really absurd in my opinion.