Huh... Digging around the MSPA wiki shows someone posted pictures of the Sprites for Mituna, Meulin, and Damara. Are those visible in the flash? Also, does anyone know if Sollux is in this flash? His planet is visible, but he isn't.
Also, an easter egg the wiki pointed out
SpoilerYou can give the bent horse hitcher to Hussie, and make him follow Meenah. If you take him to the end, then, you can find the Horse Calender hearts Boxcar got punched into