UNO Flip! card game

UNO Flip! is a double-sided version of the classic card game, designed to add more competitive elements like a 'Dark Side' and special action cards. The game was originally created by Merle Robbins in Reading, Ohio, in 1971 and was later sold to International Games.

Today, the brand is owned by Mattel, an American multinational toy manufacturing company which acquired International Games in 1992. While Mattel is an American corporation, its products are manufactured in several countries, predominantly China, Vietnam, Indonesia, and Mexico, to serve its global market. Mattel operates as the ultimate owner, managing the brand through its global subsidiaries.