As the tanuki fly off in a train of spirits and ghosts, immediately before beginning project "Poltergeist", images characters from other Ghibli works can be seen, including that of Kiki from Kiki's Delivery Service (1989), Porco Roso's Seaplane from Porco Rosso (1992), Totoro on his top from My Neighbor Totoro (1988), and young Taeko from Only Yesterday (1991) can be seen flying just above the winged skeleton.