Applying a reductio ad absurdumapproach here ...
So the tiny moon Phobos has a role to play in Hyper Dimensional Design.
What parts do Metis, Adrastea, Amalthea, Thebe, Io, Europa, Ganymede, Callisto, Themisto, Leda, Himalia, Lysithea, Elara, Carpo, Euporie, Thelxinoe,Euanthe, Helike, Orthosie, Iocaste, Praxidike, Harpalyke, Mneme,Hermippe, Thyone, Ananke, Herse, Aitne, Kale, Taygete, Chaldene, Erinome, Aoede, Kallichore, Kalyke, Carme, Callirrhoe, Eurydome, Pasithee, Kore, Cyllene, Eukelade, Pasiphaë, Hegemone, Arche, Isonoe, Sinope, Sponde, Autonoe, Megaclite, Pandora, Epimetheus, Janus, Aegaeon, Mimas, Methone, Anthe, Pallene, Enceladus, Tethys, Telesto, Calypso, , Dione, Helene, Polydeuces, Rhea, Titan, Hyperion, Iapetus, Kiviuq, Ijiraq, Phoebe, Paaliaq, Skathi, Albiorix, Bebhionn, Erriapus, Skoll, Siarnaq, Tarqeq, Greip, Hyrrokkin, Jarnsaxa, Tarvos, Mundilfari, Bergelmir, Narvi, Suttungr, Hati, Farbauti, Thrymr, Aegir, Bestla, Fenrir, Surtur, Kari, Ymir, Loge, Fornjot, Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Cupid, Belinda, Perdita, Puck, Mab, Miranda, Ariel, Umbriel, Titania, Oberon, Francisco, Caliban, Stephano, Trinculo, Sycorax, Margaret, Prospero, Setebos, Ferdinand, Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, Triton, Nereid, Halimede, Sao, Laomedeia, Psamathe, and Neso play?