Movies Similar to One Piece: Giant Mecha Soldier of Karakuri Castle

Pokémon: The First Movie(1998)

Determined to prove its superiority, a bio-engineered Pokémon called Mewtwo lures Ash, Pikachu and others into a Pokemon match like none before.

SK8 the Infinity EXTRA PART(2025)

Theatrical version of the OVA containing an extra 35 minutes of content, comprised of a special compilation video of the first season and a cast video.

Puella Magi Madoka Magica the Movie -Walpurgisnacht: Rising-

The Crimson Pirate(1952)

Burt Lancaster plays a pirate with a taste for intrigue and acrobatics who involves himself in the goings on of a revolution in the Caribbean in the late 1700s. A light hearted adventure involving prison breaks, an oddball scientist, sailing ships, naval fights and tons of swordplay.

Porco Rosso(1992)

In Italy in the 1930s, sky pirates in biplanes terrorize wealthy cruise ships as they sail the Adriatic Sea. The only pilot brave enough to stop the scourge is the mysterious Porco Rosso, a former World War I flying ace who was somehow turned into a pig during the war. As he prepares to battle the pirate crew's American ace, Porco Rosso enlists the help of spunky girl mechanic Fio Piccolo and his longtime friend Madame Gina.

Appleseed(2004)

In a utopian society created at the end of the third world war, a female warrior who has been plucked from the badlands begins to see cracks in this new facade. And what does this community have planned for the rest of humankind?

Pippi in the South Seas(1970)

Pippi Longstocking, accompanied by friends Tommy and Annika, adventures on the South Seas to search for her father, who has been kidnapped by pirates.

God of War(2017)

During the 16th century, pirates rule the Chinese coastline, pillaging the small villages and terrorizing the citizens. When maverick leader Commander Yu enlists the help of a sharp young general, they devise a plan to defeat the pirates. A violent clash of wit and weapons will decide who will rule the land.

Ponyo(2008)

When Sosuke, a young boy who lives on a clifftop overlooking the sea, rescues a stranded goldfish named Ponyo, he discovers more than he bargained for. Ponyo is a curious, energetic young creature who yearns to be human, but even as she causes chaos around the house, her father, a powerful sorcerer, schemes to return Ponyo to the sea.

Free! the Final Stroke the Second Volume(2022)

After his first appearance on the competitive world stage, Haruka was overwhelmed by Albert’s swimming and lost his way. “What are you swimming for?” His reason to swim and what the water means to him are called into question. The question has trapped Haruka, and he struggles to find the answer on his own.

Ghost in the Shell 2: Innocence(2004)

Cyborg detective Batou is assigned to investigate a series of murders committed by gynoids—doll-like cyborgs, which all malfunctioned, killed, then self-destructed afterwards. The brains of the gynoids initialize in order to protect their manufacturer's software, but in one gynoid, which Batou himself neutralized, one file remains: a voice speaking the phrase "Help me."

Fate/Grand Order: Divine Realm of the Round Table - Camelot Paladin; Agateram(2021)

The second part in a two-part anime film project adapting the "Sixth Singularity - Divine Realm of the Round Table: Camelot" story from the game.

See Me After Class(2012)

Due to an error the male student Kagami Yuuki is registered for a room in the girls dormitory of his new co-ed high school. Since no male rooms are available he is left with no other option than to sleep in the girls dormitory in the same room as the teacher that made the mistak in the first place, Ayane-sensei. To avoid getting kicked out of the school for being a boy in a girls dormitory he has to cross-dress whenever he is leaving his room. Needless to say that this brings him a lot of trouble.

LUPIN THE 3rd vs. CAT'S EYE(2023)

Lupin III competes with the Kisugi sisters to steal a triptych of paintings that once belonged to their father, and which hold the key to a long-unsolved mystery.

Treasure Island(1990)

Young Jim Hawkins, while running the Benbow Inn with his mother, meets Captain Billy Bones, who dies at the inn while it is beseiged by buccaneers led by Blind Pew. Jim and his mother fight off the attackers and discover Billy Bones' treasure map for which the buccaneers had come. Jim agrees to sail on the S.S. Espaniola with Squire Trelawney and Dr. Livesey to find the treasure on a mysterious isiand. Upon arriving at the island, ship's cook and scaliwag Long John Silver leads a mutiny of crew members who want the treasure for themselves. Jim helps the Squire and Espaniola officers to survive the mutiny and fight back against Silver's men, who have taken over the Espaniola.

Detective Conan: The Phantom of Baker Street(2002)

Noah's Ark, the latest innovation in VR technology, is set for a showcase to Japan's privileged children. However, their carefree fun is cut short when a company employee is found murdered, with his dying message pointing to a clue hidden within the Ark. Along with the Detective Boys and Ran Mouri, Conan Edogawa enters Noah's Ark to solve this mystery and ensure the perpetrator is caught.

Daddy Long Legs(1979)

An orphan girl receives a scholarship for a prestigious school from an anonymous benefactor who she refers to as Daddy Long Legs.

Feast of the Fallen Angels(1985)

Datenshi-tachi no Kyōen is an OAV (1985) where the younger sister of a family (who gets in way over their heads) ends up owing the yakuza money. Because she can't pay, she is taken by the gang members to be used as a sexual toy. Then she vows to take gruesome revenge upon her perpetrators.

Lupin the Third: Green vs Red(2008)

When a Lupin impersonator is arrested for shoplifting in Tokyo, dozens of other copycats converge on the city to clear the name of Arsene Lupin III. The real Lupin is in town too, both to watch the show and to steal a mysterious item called the Ice Cube. But one of those impostors also has sights on the Cube. Is he good enough to beat the original at his own game?

I'm in Love With My Little Sister(2005)

Yori and his twin sister Iku used to be very close as children but lately Yori has grown colder toward Iku and is always eager to stay away from her. Iku was confused by Yori's attitude. Actually Yori is in love with Iku and that forbidden love is causing Yori sleepless nights since Yori and Iku are sharing the same room with bunk beds. Yori tried to ease his intense desire for Iku by bedding Iku's best friend. He had even applied to attend a boarding school in another city to take him far away from Iku. Yori lost his resolve to stay quiet about his feelings when Iku started to talk about having a boyfriend and going on dates. Now Yori want to have his little sister and he confessed. Iku loves her big brother and wanted them to stay together, so Iku is willing to anything to keep them together. But Yori wanted to have Iku as a lover, not as a sister loyal to her twin.