difference between Wii Classic Controller and U Classic Controller is that the UPad has everything the U Classic Controller Pro does
default Wii controls can't support CC controls, so if devs want to use CC controls, it means that it's necessary to have the add-on controller
with U, the default controller (the pad), has everything the Classic controller does, so if you want to make a classic game it's not necessary to purchase the add-on controller
Exactly.
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Thank you, Eddie Guerrero.
http://tinyurl.com/73jgc2r