Dithering with high recognasability: https://forums.tigsource.com/index.php?topic=40832.msg121719...
Dithering and motion: https://forums.tigsource.com/index.php?topic=40832.msg136374...
But honestly just read the whole devlog!
God this guy is such an inspiration. Reading this devlog is giving me goosebumps. I finished the game a couple days ago. To know he made this entire thing (music included).. mindblowing
It’s fascinating just to see the creativity, but also a teaching moment on striking the balance between tight, accurate engineering and enough hack&mirrors to pass inspection.
 Bethesda's broken engine notwithstanding.