Is multiplayer crippling Mario 3D World's level design?

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LilChicken22 said:
I just want my proper 3D Mario alright.... why Miyamoto.....WHY

As far as I know, Miyamoto isn't making this; he was doing Pikmin , now he's working on his new IP.

3D World is being produced by Yoshiaki Koizumi and directed by Koichi Hayashida.