Above, you can see how the WiiPad plays into the game. It's essentially a glorified character selector and camera controller – by tapping on a character, you'll jump to them; by tapping on a character twice, you can switch the camera focus to them. In The Cave, characters cannot move independently off-screen.
"So other than that, it pretty much plays like all the other versions," Double Fine's Remo told me. "We did work really hard to ensure that visually everything you're seeing is identical to the Xbox 360 and PS3 versions, so there's no downscaling, there's nothing going on that is not up to par with the other next-gen systems. There's nothing super wacky going on, but it's a completely full-featured version of the game."
The Cave launches on Wii U next year.