Wii U won’t make Achievements Mandatory for all games.

[forest-spirit]

VicViper said:

They are implemented. Just not obligatory.

Answer me if you have played before. How do you put achievements on Ace Attorney, for example?

If you haven't, it's a game where every single playthrough is the same, for everybody. Everybody achieves the same thing when they finish it.

It'd probably be for clearing each chapter plus clearing them without messing up. Same with Professor Layton, except you get an achievement for solving a certain amount of puzzles too.