This sort of thing wasn't actually unheard of on 8bit consoles like the NES: https://wiki.nesdev.com/w/index.php/Palette_change_mid_frame https://wiki.nesdev.co

This sort of thing wasn't actually unheard of on 8bit consoles like the NES: https://wiki.nesdev.com/w/index.php/Palette_change_mid_frame https://wiki.nesdev.com/w/index.php/Palette_change_mid_frame