Nintendo of America boss Reggie Fils-Aime has said that Microsoft and Sony need to come up with their own innovations in response to Wii U, because simply speedier processors won't be enough.
"In the end, our competitors need to react to what we're doing in the marketplace and need to figure out what their innovation will be," Fils-Aime told CNET.
"It's likely that faster processors and pretty pictures won't be enough to motivate consumers. They need to react to what we've done and we need to continue innovating with the Wii U - and we will."
Fils-Aime also rejected any notion that the Wii U was simply Nintendo moving to 'catch up' with Microsoft and Sony's HD consoles.
"For us, launching new systems is about bringing new consumer experiences to the marketplace and we're doing that with Nintendo Land and third-party publishers are doing it with games like ZombiU. For us, now is the right time to launch new hardware."