Doctor Mobius is a Master LEGOsmith, or whatever title you give someone who is a badass at making things out of LEGO pieces. This spider was made using thousands of those antenna pieces which are the hairlike growths. I mostly just used them on the top of robot heads or as gear shifters in cars. Mobius definitely found a far more creative use for them. The spider's top side has a compartment that carries troops, while the abdomen carries glowing eggs. Wouldn't be a huge gross spider without bearing a bunch of eggs, now would it?