What would a Sonic game made by Nintendo be like?

[lord_of_flood]

I would say that Nintendo would probably incorporate the ideas that Sonic Lost World had and simply make them clearer, more focused, and of better quality. Lost World could have been a great game, but it was just really unfocused in terms of level design and had a very odd control scheme. Just heavily refine the ideas in Lost World and give it a more intuitive controls, and you'll have yourself a pretty good Sonic game.