Can Wii U games be played with pro controller only?

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http://hardforum.com – I am thinking of getting my 6 year old a Wii or a Wii U. I mainly want one for the virtual console games so a regular Wii might be the better buy. I am wondering though, do the actual Wii U games allow play with just the pro controller instead of the game pad? He already managed to scratch my iPad screen so I would rather just keep the game pad in the box. (Hardware)