Rayman Legends Lead Game Designer, Emile Morel has stated the below about Rayman Legend on the Nintendo Wii U:
“Not the whole game is like this – you have specific levels for Murphy and the GamePad and more classic levels when you are playing as Rayman from beginning to the end. Half of the game, maybe not half but a good portion of the game, you’ll have to play as Murphy.”
If almost half of Rayman Legends is you playing with Murphy to help guide an AI controlled version of Rayman, that just doesn’t seem very good. It would be fine if you had the chose to play as Murphy or Rayman, but Morel says “you’ll have to play as Murphy” in certain levels. This actually detracts from the appeal of Rayman Legends.