Kishi didn't make Minato's regular cloak change or anything like that of Naruto's...wtf?
It's just a darker version of Naruto's...
Minato didn't get any marks on him from transferring into Bijuu Mode...NOTHING...ABSOLUTELY NOTHING...
Does this just mean Kishi was playing the Main Character looks coolest card or something?
Haha i guess so. Or maybe Minato's so badass in general he doens't need a different cloak.
Maybe it has something to do with how close Minato is with his half. To me it seems like the kyuubi gives Minato his chakra but there not best buddies like naruto and his half.
I don't think they're evenly matched. The size of everything might be the same but I still think it's not quite the same. Also, I think that Naruto has different form due to fact that he's an Uzumaki, in other words, Senju.
My guess is that while Minato's body can gain the aura of Chakra Mode, he cannot transform to the extent of Naruto's Bijuu Mode because he, being an Edo, cannot fully merge with the power of his half of Kurama. While Bijuu can manifest around their Edo Jinchuuriki (as with Obito's Paths earlier in the fight), Edos themselves cannot truly become Jinchuuriki (as stated by Madara).
i imagine they look the same because its the same bijuu
i would say it was the seal but minato sealed the second half of the kyuubi with the death god seal not the uzumaki seal
but who knows, kishimoto isnt famous for his plot transparency or consistency
Furthermore, Naruto had the Kyuubi inside him since his birth, they became synchronized on a much deeper level than anyone except Gaara who got Shukkaku even before being born.
In the end, I also atribute this to the fact Naruto needs to stand above his father in Kurama control as even Kishimoto must recognize that giving the same kind of power up Naruto had to his father who came out of the blue would be disservicing the main character's efforts.