Flying Phantom Ship (1969):
“Hayato's peaceful life with his parents and his dog is brought to a dramatic, terrible end when a giant robot, said to be sent from a flying ghost ship, devastates the city, killing hundreds including Hayato's parents.”
It all begins with a fishing trip where Hayato's dad encounters the ghost ship captain in a haunted castle. The captain is actually there to scare his company's boss, who is in the castle, but they don't know that. So, after saving his dad's boss from the castle, a giant golem attacks Tokyo, claiming to be from the captain. Hayato's family dies in the attack, and he finds out they aren't his real parents. So, what began as a playful Scooby Doo mystery takes a hard turn into Japanese monster movie territory. Hayato tells his dog to get lost, and soon discovers that the boss (named Kuroshio.) was behind the golem attack, not the pirate captain, after he reveals his underground lair. Turns out, the attack is a ploy to promote Japanese industry and get everyone addicted to Boa Juice, Hayato's favorite soda pop.
The soda is actually produced by a sea monster Boa, who sends a giant crab monster to Tokyo and turns Kuroshio into soda for failing to disguise the attack. Meanwhile, Hayato joins the ghost ship captain, who is actually a defender of Japan. His ship is actually a robot ship, equipped with lasers and forcefields.
On the ship, Hayato vows to defeat Boa, and give up his favorite soda to defend the people. The pirate captain takes off his skull mask, and reveals himself as Hayato's real father. We're introduced to Tori, his daughter (and Hayato's sister.) who motivates him to find Boa. This movie wears a lot of different hats. On one hand, it's a mystery, then a monster movie, then an adventure.
As it turns into an undersea adventure, we see that Boa is a giant squid. His body is invulnerable to torpedo and laser attacks. Tori discovers by accidentally hitting an EMP pulse button during a crash that Boa is actually a robot, and they can defeat him with electromagnetism. The monster goes haywire, and buries itself after crashing into a cave wall. Hayato is congratulated back home by his new family, and becomes the new ghost ship captain.
So, is this all worth watching? Yes, but only because it's very short: 61 mins. It's exciting, but never really picks a tone. It's exciting, but I wish it were more focused. As it is, it's a good adventure flick. I'd say give it a watch anyway you can. It's worth it just to see all the craziness.
It wears a lot of the trends of 1960s Japan: Monster attacks, robots, environmentalist themes, family switcheroos...but it wears them all like a finely-tailored suit. Trivia: for its anti-capitalist themes this was the first ever Japanese anime shown in Russia (USSR), and the animation on the ship was done by Hayao Miyazaki.