I found an easter egg from 1977
While I am not implying these were used as such, another purpose these complicated sequences can hold is as a code trap for clone detection.<p>Code Traps:<p><a href="https://arcadeblogger.com/2019/06/29/atari-centipedes-hidden-code-trap/" rel="nofollow">https://arcadeblogger.com/2019/06/29/atari-centipedes-hidden...</a><p>And the discussion here a month ago about code traps: <a href="https://news.ycombinator.com/item?id=20312256" rel="nofollow">https://news.ycombinator.com/item?id=20312256</a><p>Along similar lines in both the digital and non-digital world people would include false landmarks and roads on maps to detect copying, since while facts are not protected, fake places are <a href="https://en.wikipedia.org/wiki/Trap_street" rel="nofollow">https://en.wikipedia.org/wiki/Trap_street</a>