If you're looking for manga similar to Saint Seiya Movie 3: Legend of Crimson Youth, you might like these titles.
Mr. Satan has just finished building a grand hotel, and has invited Goku and his friends to a feast to celebrate. All is peaceful until Vegeta's brother Tarble shows up; he is looking for help against two evil brothers who attacked his planet, and have now followed him to Earth. Everyone wants in on the action, but in order to be fair, they decide that only two people will fight these evil brothers. After drawing lots, they determine that the mighty warriors who will confront the villains will be... the children, Trunks and Goten! Will these mighty fiends be able to defeat two small boys? Will Mr. Satan's glorious new hotel survive the onslaught? And most importantly, will Goku ever stop eating?
In a world where aliens known as "The Noise" threaten the earth, only one thing can protect the human race: the magical armor Symphogear. But in order to save their world, the Symphogear wearers will have to learn from the tragedies of the past.
One day high school student Hiro decides to apply as a monitor for a new gadget called JUNK. Soon he recieves a strange looking device in the mail. Upon activation, Hiro is encased in a powered armor JUNK suit granting him incredible strength, speed and agility. However, Hiro's repeat abuse at the hands of the school bullies leaves him hungry for revenge... not super heroism.
Okamine Mikie idolizes her superior AST member, Tobiichi Origami, and may be in love with her as well. Unfortunately, Origami seems to want nothing to do with her. One day, they end up heading toward an explosion that wasn't caused by a spirit. Instead, it was caused by a girl named Ashley Sinclair, who transfers to their school shortly after the incident!
When the Fullmetal Knights Chevalion defeated the Death Universe, peace returned and the Chevalion members returned to their normal daily lives. Well, except for their leader, Retto. For some reason his suit won't come off. So he's stuck as Chevalion Red, and he has problems controlling his powers.
Well-known fighters are all here at the national competition to find out who is the best fighter, but a mysterious group, called “Nox Solidarity”, comes and tries to make a mess. Now, who is going to fight with Mori and his friends against Nox?
After kidnapping Future Trunks, the mysterious Fu lures Goku and Vegeta to the Prison Planet, an experimental area which Fu created and has filled with strong warriors from different planets and eras in order to force them into a game where they must collect the seven Dragon Balls if they wish to escape.