Tengen, a company affiliated with Atari Games, made a bold move to break Nintendo’s licensing regime for the NES in the late 1980s. They manufactured their own circuit boards and used a variety of mapper chips to create unlicensed games for the console. Tengen’s most notable titles included “Pac-Man,” “Tetris,” and “After Burner,” each with its own unique circuit board design. They even managed to obtain the source code for Nintendo’s lockout chip, allowing them to create their own clone. While Tengen’s actions were met with controversy and legal battles, they did provide some innovative and impressive games for NES players.
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