Marvin Glass and Associates

Marvin Glass and Associates (MGA) was an American toy company based in Chicago . The company was founded in 1941. MGA became known around the world in the 1980s, when the company had a manufacturing contract with Bally Midway and developed a number of successful video games for them, including titles such as Tapper , Domino Man , and Timber .

Part of the company still exists today (under the name "Big Monster Toys") in Chicago.