Well, in addition to the main Dragon Ball Heroes like Xeno Goku and Xeno Vegeta, characters like Gohan could be great. His potential as a half - Saiyan is always interesting. From other franchises, Ichigo from Bleach could be included. His ability to use a sword and his Hollow powers would be a fresh addition. And of course, Spider - Man from the Marvel Universe. His quippy nature and his acrobatic fighting style would create some really fun interactions with the Dragon Ball Heroes.
Definitely Vegeta. His prideful and complex personality would add a lot to any crossover. For example, in a crossover with the Avengers, his initial reluctance to work with Earthlings could create interesting conflict. Another good character is Piccolo. His wisdom and fighting skills would be valuable in a crossover. If it was a crossover with the Mortal Kombat universe, Piccolo could hold his own against the likes of Scorpion and Sub - Zero.
Trunks is also a great choice. He has his time - traveling aspect which could be used in really creative ways in a crossover. For instance, in a crossover with the Terminator universe, Trunks could team up with the resistance against the machines, using his time - traveling knowledge and his sword skills.
A cunning thief could be an interesting character. They might be tempted to steal a precious item from the Everlasting Dragon or use its presence to their advantage in the underworld of the crossover world. They could add an element of mystery and mischief to the story.
Vegeta would be a great addition. His long - standing rivalry with both Goku and Frieza adds a lot of drama. Also, Beerus, the God of Destruction. His power level and unpredictable nature would shake things up in a story with Goku and Frieza. And Bulma could be included for her technological expertise, which could be useful in creating devices to counter Frieza's advanced technology.
Sly Cooper would be a great addition. Sly's sneaky, thieving skills could add an element of stealth to a Spyro crossover. He could help Spyro steal back a precious artifact that has been stolen by their common enemy, using his lock - picking and acrobatic skills.
One idea could be a crossover with the Naruto universe. The Saiyans could learn about chakra and how to use it, while the ninjas are amazed by the power of ki. Another could be a time - traveling plot where the Dragon Ball Heroes characters end up in the past of their own world and have to prevent a major catastrophe that changes the course of their history. Maybe a crossover with One Piece where they search for the One Piece together and face off against the powerful pirates and the Marines.
Well, aside from the obvious ones like Superman and Batman, Martian Manhunter is a great character to include. His alien nature and diverse powers such as shape - shifting, invisibility and telepathy can add a whole new layer to a crossover. Then there's Cyborg. His half - human, half - machine nature can create some really interesting interactions with other heroes, especially those with more traditional powers. And Harley Quinn, even though she's more of a villain, her chaotic and unpredictable nature can make for some really fun crossovers with the heroes.
Goku would be a great addition. His experience and power could serve as a mentor to Shallot or as a powerful ally in battles. Also, Vegeta could bring his prideful and powerful presence, creating interesting dynamics with Shallot.
Definitely Enid from 'OK KO let's be heroes'. She has her own unique fighting style and a cool personality. In a crossover, she could team up with characters like Dipper from 'Gravity Falls'. Dipper's knowledge of the supernatural and Enid's combat skills would make for an interesting duo.
Solid Snake from the Metal Gear series would be a great choice. His stealth skills and military expertise would contrast with Travis Touchdown's more brash and direct fighting style. They could be forced to work together on a mission, and learn from each other's ways of combat.