Global game developer and publisher Mattel163 from Mattel, Inc. today announced the launch of UNO Teams Mode in UNO Wonder, bringing the beloved 2v2 gameplay of UNO Teams to the mobile game for the very first time. This summer, players can tackle levels solo or team up with friends for fast-paced duo battles, adding a new layer of teamwork to summer travel, online hangouts and gaming anytime, anywhere. The new UNO Teams game mode is now available worldwide in UNO Wonder on the App Store and Google Play.