Atari 2600 Port of "Jawbreaker". Because of technical limitations, Atari 2600 Jawbreaker is not a Pac-Man clone and is different than the Atari 8-bit game. A rough sketch of the 2600 game was used as the basis for new computer versions from programmers other than Harris. The new game was, confusingly, sold as both Jawbreaker and Jawbreaker II and was not as successful as the original.