Does Donkey Kong Tropical Freeze pushes WiiU to the limits?

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DialgaMarine said:

Flanneryaug said:
Where does it say that the gamepad goes dark because of performance problems? The link says that it goes dark to save gamepad battery life. This game won't push the Wii U to the limits, but it will still look nice.

 It's pretty much implied. Why on earth would the developer not use the gamepad features if they weren't worried about it putting too much tax on the console? They probably couldn't have achieved 60 FPS with the Gamepad, which makes you wonder why the game isn't running 1080p. The game really doesn't look that good, graphically.

And yet Mario 3D World runs at 60fps with the Gamepad running and uses more effects than Tropical Freeze.

As for the pics, the third one is Trine 2: Director's Cut, and it was pointed out I chose a poor image of Pikmin 3. Here's some better ones: