Naruto would likely be very curious. He's always up for new challenges and adventures. The Gundam technology with its huge mechs and advanced weaponry would seem like a really cool and powerful thing to him. He might start thinking of ways to combine his ninja skills with the Gundam's capabilities. For example, he could use his speed and agility to pilot the Gundam in a more unique way or use his shadow clone jutsu to confuse the enemies while operating the Gundam. He'd also probably be impressed by the technology that can create such large and powerful machines.
Well, he'd probably be a very unorthodox pilot. His lack of formal military training like traditional Gundam pilots would lead to some interesting combat styles. He'd rely more on his instincts and natural abilities. For instance, his agility from all his ninja training could help him dodge attacks in the Gundam more effectively than some trained pilots.
One idea could be Naruto's energetic and determined personality translating into his Gundam piloting. He might use his never - give - up attitude to face difficult battles. For example, in a scenario where his Gundam is outnumbered, he'd use his quick thinking, much like in the Naruto series when he's outnumbered by enemies.
Another idea is a crossover where the technology of G Gundam is introduced into the Naruto world. Maybe the Hidden Villages start to develop Gundam - like mechas using their own unique ninja techniques. This would completely change the dynamics of battles in the Naruto universe.
One great fanfiction idea could be Naruto characters having to adapt to the high - tech world of Gundam 00. For example, Naruto's ninjutsu skills might be combined with the advanced technology of Gundam. He could use his shadow clone jutsu to pilot multiple Gundams at once, creating a really unique and powerful combat strategy.
First, you need to understand the core elements of both universes. For Gundam Seed, know about the different mobile suits, the political conflicts between the Earth Alliance and ZAFT. In Naruto, study the ninja techniques, the chakra system and the relationships between the villages. Then, find a unique concept to combine them. It could be a character from Naruto ending up in the Gundam Seed world or vice versa.
I'm not sure specifically as it could be a very niche fan - made story. It might be a fanfiction where Naruto, from the Naruto series, is somehow involved in a situation related to Gundam and is abandoned within that fictional scenario. But without reading it, it's hard to say for sure.
The unique feature is the combination of two very different universes. You get the fast - paced ninja battles from Naruto and the large - scale mecha warfare of Gundam. For example, in some fanfics, Naruto might use his shadow clone jutsu to outmaneuver Gundam enemies.
It might be bright orange, just like Naruto's jumpsuit. It could have the symbol of the Hidden Leaf Village on it too. And for the shape, it could be somewhat streamlined for speed, like Naruto who is always on the move.
Naruto's immortality can have a huge impact. He can take more risks in battles involving Gundams. For instance, he could sacrifice himself to save a Gundam pilot knowing he'll come back. His ninja skills like teleportation (body flicker) could be used to quickly move around Gundams during combat, which would be a new and unexpected tactic in the Gundam universe.