"Field Sixie" is rumored to be a corruption or a specific debug term for Sector 6 , the game’s notorious difficulty spike. In the V04 build, this sector behaves differently:
If you are reading this, you are already in the field. Don’t look at the sky. Don’t count your fingers. And for the love of whatever god you still remember, do not—repeat, DO NOT—say the word “Mozu” three times while touching soil. The soil will answer. And it has very poor phone etiquette. alien invasyndrome v04 mozu field sixie extra quality
The tree's leaves rustled. And far beneath the new sand, something with too many eyes began to dream again. "Alien invasyndrome" could be a reference to a