In the early 1980s, General Computer Corporation caught the ire of Atari after developing modifications to their arcade games. Among other bootleg works, GCC is responsible for developing Crazy Otto, which Midway would themselves retool into Ms. Pac-Man in 1982.
Atari sought a lawsuit but then backed off when a deal was struck that had GCC developing games for Atari. In 1984 though, the company's focus changed. GCC began developing hardware for the Macintosh, and is still around today as a printer company.