The Spartans' superhuman strength and advanced armor could be combined with GI Joe's stealth and infiltration skills. For example, a Spartan could provide cover fire while a GI Joe operative sneaks in to disable an enemy base's defenses.
In a crossover, Kakashi could be an interesting character to combine with the Halo universe. His Sharingan allows him to use various jutsu. If he were in the Halo universe, he could use his teleportation jutsu in combat situations. He could also use his knowledge of different ninjutsu to create new strategies against the Halo enemies. And perhaps he could teach some of the UNSC soldiers how to better sense their surroundings, similar to how he uses his Sharingan in Naruto.
Let's consider Seto Kaiba's technology - based cards and strategies in Yu - Gi - Oh. In a Bleach Yu - Gi - Oh crossover, his technology could be integrated with the scientific aspects of the Soul Society in Bleach. For instance, his holographic dueling technology could be used to create training simulations for Soul Reapers. And the psychic powers of some Yu - Gi - Oh characters could be used to communicate with the ZanpakutÅ spirits in Bleach. At the same time, the teleportation abilities of some Bleach characters could be used to quickly move around the dueling arenas in Yu - Gi - Oh, giving them an edge in battles.
Master Chief's super - soldier abilities combined with Ryder's biotic powers would be extremely powerful. Chief's physical strength, combat training, and strategic thinking, along with Ryder's ability to manipulate mass effect fields, could create a character capable of taking on the toughest enemies. For example, Chief could provide cover fire while Ryder uses biotics to lift and throw enemies.
The Covenant's energy weapons and their unique alien abilities could mix with the Star Wars technology and Force powers in various ways. The Grunts could be like the Ewoks in terms of being small but fierce when combined with the right support. The Elites' combat skills might be on par with some of the Star Wars bounty hunters, and together they could form an interesting team.
In terms of character abilities, Naruto's Rasengan could be translated into a powerful card. When used in a duel, it could have an effect like destroying all the opponent's defensive cards on the field. And the Yu - Gi - Oh GX duelists' ability to summon powerful monsters could be used in a way that the Naruto characters see them as similar to summoning their own animal companions. They could learn from each other's summoning techniques.
If Naruto was in the Splatoon world, his Shadow Clone Jutsu could be used in interesting ways. He could send clones to cover more ground during an ink battle, confusing the enemy. And for the Inkling's part, their ability to swim in ink could help Naruto move around in ink - filled areas more easily. They could also use their ink guns to provide cover for Naruto while he attacks up close.
Well, if Izaya from Durarara and Shikamaru from Naruto were to team up, Izaya's intelligence in manipulating people and Shikamaru's strategic thinking could create some really devious plans. Shikamaru could use his shadow - binding jutsu to physically restrain opponents while Izaya uses his words to mislead and confuse their enemies. Another example is if Celty's shadow powers were combined with Naruto's chakra - enhanced strength. Naruto could use Celty's shadows to extend his reach in battle, like creating shadow - arms that are empowered by his chakra.
Naruto's ability to use chakra and his shadow clone jutsu could be combined with the Ninjago ninjas' elemental powers. For example, Naruto could create shadow clones to help Kai with his fire - based attacks in a battle.
The sharingan ability from Naruto's world could be used in an interesting way with the Voltron technology. For example, a character with the sharingan could quickly analyze the weak points in the Galra's defenses or the mechanisms of the Voltron lions themselves, allowing for more efficient repairs or strategic attacks. And Voltron's ability to form into a giant robot could be used as a cover or a platform for Naruto characters to perform their long - range jutsus from a safe vantage point.
Naruto's ability to use chakra could be combined with Batman's gadgets. For example, Naruto could use his chakra to power up some of Batman's energy - based weapons. Batman's detective skills could help Naruto in his ninja missions in the Naruto world. He could analyze the enemy's patterns and strategies better. Also, Naruto's shadow clone technique could be used for reconnaissance in Gotham, while Batman's stealth could be applied in the Hidden Villages for spying on potential threats.