Doraemon: The Record of Nobita's Parallel Journey to the West

Nobita wants to prove the Monkey King is real, so he and his friends travel back to the time when Sanzo began his pilgrimage. Doraemon uses a virtual video game console to let Nobita play "Journey to the West," giving him clothes like the Monkey King’s. But Nobita fails to prove the Monkey King’s existence. After finishing the game without fighting any demons, they discover their own world is now ruled by demons. The trouble starts because Doraemon left the game console open in the past, allowing demons to invade. Now, Doraemon and the group must return to the past to defeat them.