spoilers ig? I don't believe the grays are supposed to be lore significant, and were mostly added to screw with vinesauce joel (a streamer who made the game very, very popular, very quickly and is absolutely terrified of even silly grays and ufos... which is also why the grays are comically tiny and silly looking, if you've seen one). I assume they'll still be used to add variety but I don't think they're supposed to be really relevant compared to arirals and rozital and such