Iwata Asks Reveals New Super Mario Bros. U Took Three Years To Develop

[miz1q2w3e]

cunger said:

miz1q2w3e said:
Could they really be that inefficient?

The fact is that they also created New Super Mario Bros 2 at the same time. They likely didn't put serious effort into developing the game until much later.  Knaw mean?

Yeah, I just noticed in the developers list that the games come from the same team.