Youkai Watch Movie 3: Soratobu Kujira to Double Sekai no Daibouken da Nyan!

A gigantic flying whale appears above Sakura New Town and lets out a strange cry. In an instant, Nate and his Yo-kai friends find their familiar world transformed: their bodies become realistic and tangible, and a second version of their town seems to exist alongside the one they know.

To restore things, Nate, Whisper, Jibanyan, and the others must move between two very different worlds and uncover the connection between the whale and a girl named Kanami. Their search turns a bizarre transformation into an adventure where animation and reality collide.