Users of the console will be able to use the Wii wireless remote controller to navigate websites in between gaming sessions, the company said.
Opera and Nintendo announced a partnership to deliver the full Opera browser for the next-generation Nintendo DS device on 15 February.
The Nintendo DS browser is scheduled for release in Japan this summer, but the firm has not yet announced global launch plans.
"For our Wii console launch in 2006, we required a browser that was fast and secure with support for the latest standards including Ajax, " said Genyo Takeda, senior managing director and general manager at Nintendo's Integrated Research & Development division.
"Opera proved perfect for our purposes and is an exceptional addition to both the Nintendo DS and the Wii console."
Electronics and computer chain the latest high street retailer to fall into difficulties
Incisive Media and Investec Asset Management supported fundraiser crosses Atlantic in 40 days
Alphabet's health sciences division Verily have been messing with AI algorithms
North Korea's cyber attack capabilities are expanding fast - and turning their fire on a wider range of targets