Pokémon Heroes (2002)

Doraemon and his friends travel to the 22nd century to look for his golden bell, which was stolen by a notorious thief called Kaito DX.

Nobita coaxes his friends to join him for a treasure hunt but an eerie event transports them to the past. However, their hunt for treasure is not easy as they come face-to-face with pirates.

On their way through the Battle Frontier, Ash and friends meet up with a Pokémon Ranger who's mission is to deliever the egg of Manaphy to a temple on the ocean's floor. However, a greedy pirate wants the power of Manaphy to himself.

Upon hearing about the story of Treasure Island, Nobita dreams of discovering and exploring his own treasure island, despite the fact all of the Earth has been mapped already.

Nobita finds a passage to a spaceship in another dimension. With their new friends, he and Doraemon fight the cruel leader of an exploited planet.

The glittering Gran Tesoro, a city of entertainment beyond the laws of the government, is a sanctuary for the world’s most infamous pirates, Marines, and filthy rich millionaires. Drawn by dreams of hitting the jackpot, Captain Luffy and his crew sail straight for the gold. But behind the gilded curtains lies a powerful king whose deep pockets and deeper ambitions spell disaster for the Straw Hats and the New World alike.

Sewashi and Doraemon find themselves way back in time and meet Nobita. It is up to Doraemon to take care of Nobita or else he will not return to the present.

After bringing a fossilized egg back to life with the Time Cloth, Nobita finds himself the owner of a baby dinosaur. Everything is fine until it grows up. Nobita and friends use Doraemon's time machine to return it back to its own time.

Nobita and Doraemon use time tree Mochi and catch a big bird, which has been extinct for 500 years ago. To protect the animal, Nobita and Doraemon go to Beremon Island, overseen by a golden beetle named Herakles.

Doraemon and his friends travel to ancient Japan where they meet Kukuru. When Kukuru tells them that his tribe has been enslaved by Gigazombie, Doraemon decides to help him.