Kekko Kamen: The MGF Strikes Back (2004)

In a society devastated by the effects of an all-out war between heroes and villains, a mysterious giant fortress suddenly appears, engulfing towns and people one after another. Then, a man reminiscent of All Might, the 'symbol of peace', stands in front of Izuku and his friends...

A mysterious group called Humarize strongly believes in the Quirk Singularity Doomsday theory which states that when quirks get mixed further in with future generations, that power will bring forth the end of humanity. In order to save everyone, the Pro-Heroes around the world ask UA Academy heroes-in-training to assist them and form a world-class selected hero team. It’s up to the heroes to save the world and the future of heroes in what is the most dangerous crisis to take place yet in My Hero Academia.

Iron Man enlists the help of ruthless vigilante the Punisher to track down War Machine's murderer. All the while, he's being pursued by S.H.I.E.L.D. agents Black Widow and Hawkeye, who suspect his involvement in a recent terrorist plot.

A Saiyan Space pod crash-lands on Earth out of which a wounded Saiyan crawls: Broly, the Legendary Super Saiyan. The wounded Broly shouts out in frustration and turns into normal form. The place soon freezes, trapping him in it and he falls into a coma.

A young, aspiring hero and superhero fan inadvertently unleashes a powerful new villain looking to rid the world of the Avengers.

News about the disappearance of panties is still being covered every day. Kyosuke still wears Aiko Completo's panties to battle evil. Meanwhile, Aiko has mixed emotions and decides to get her panties back. Kyosuke suffers from the loss of Aiko's panties and disappears, but his biggest enemy yet is about to materialise.

When the Punisher takes out a black-market weapons dealer, he stumbles upon a far-reaching terrorist plot devised by a group known as Leviathan.

All Might and Deku accept an invitation to go abroad to a floating and mobile manmade city, called 'I-Island', where they research quirks as well as hero supplemental items at the special 'I-Expo' convention that is currently being held on the island. During that time, suddenly, despite an iron wall of security surrounding the island, the system is breached by a villain, and the only ones able to stop him are the students of Class 1-A.

In an alternate universe, very different versions of DC's Trinity fight against the government after they are framed for an embassy bombing.

When the Spirit World is flooded due to an unusual rainfall which overflows the River Sanzu (aka the River Styx), Lord Koenma senses an extremely powerful enemy. He entrusts Death God Botan, to deliver to Spirit Detective Yusuke, a mysterious item which must be protected from the invading enemy. However, by the time Botan finds Yusuke, she's too weak to explain the situation. Yusuke and his friends are left in the dark about the new enemy, but not for long. Soon it is a battle for Earth between mere Spirit Detectives and the almighty king of the Netherworld.