Nintendo has reassured gamers that there are "a lot of things being developed" for Wii U, revealing that there are plenty more unannounced Wii U titles in development at third-parties.

"I think a lot of third-party companies are developing for Wii U," Nintendo UK boss David Yarnton told VideoGamer, "and a lot of it hasn't been announced.

"There's something like 23 games on show at E3, but we know there are others in development as well."

We asked Yarnton whether that meant Call of Duty: Black Ops II could be in development for Wii U, following its showing in an article in this month's issue of NGamer.

"We can't comment on speculation," he continued. "There are lots of things everybody wishes for."

Yarnton also suggested that third-party developers have contributed to the development of differing gameplay styles and experiences offered by the Wii U GamePad.

"That's one of the things we found with third-party coming in," he continued. "The developers have opened up some opportunities for us to develop new ways to play and add some new complexities to the game.

"So you can be playing one game in a certain manner and another in a different way, while still using the [GamePad]. This is what we're talking about when we talk about asymmetrical gaming. It's not only multiple views by having the [GamePad], but multiple ways of playing as well."

Nintendo also told us that it hasn't yet started discussing Wii U pricing with retailers.

For more from Yarnton head over to our complete interview.

Carry on the conversation on the VideoGamer forums!