Nintendo's E3 2012 conference was short of information on the technical side of the Wii U console and, features aside, whether the console's controller can be used on conjunction with another controller. It appears that's the case, at a cost.

Nintendo previously said the Wii U GamePad could be used alone. However, the company since has confirmed additional players won't have to use a Wii Remote and Nunchuck together. There was no confirmation of cost, and if the second controller will be wired or wireless. In the Rayman Legends section of the Ubisoft E3 conference, it was confirmed the final version of the controller will be wireless.

Nintendo of Japan since posted on Twitter that using two GamePads drops the frame rate to 30 FPS, if both are active. Nintendo didn't say outright that games can run at 60FPS, but that seems to be the suggestion if two run at 30. However, one GamePad can be switched off quickly.

The Japanese Nintendo site also said the tablet takes 2 hours and 30 minutes to charge, and runs for 3-5 hours depending on the screen brightness. Bear in mind the tablet is wireless and requires a constant Wi-Fi connection to use, though playing games such as ZombiU for a few hours means players will be forced to stop playing unless other controllers - such as the Wii Remote and the Nunchuck - are supported. Whether Nintendo will offer a wired controller, or an Xbox 360-esque plug in and play connector option, is unknown.

Nintendo's E3 conference caused a lot of questions to remain: what's the price of the console? When is it releasing, within the holidays? What new, third-party games are launching? The third-party games seem, aside from ZombiU from Ubisoft and Scribblenauts: Unlimited from 5th CEll, were games that released last year such as Batman: Arkham City and Mass Effect 3.

Nintendo also didn't confirm how powerful the console is in relation to the Xbox 360 and PlayStation 3. Current generation consoles can do 30 and 60 FPS - Call of Duty runs consistently at the latter - so the Wii U seems to be on a similar level.