>>45325574>>45325574Late, but yes, in terms of gameplay it's mostly the same in both. Other than the dragon, the main differences are in bits of N's dialogue that don't impact game meaningfully.
If you're asking about the theme though, it's a little more significant. You could say that truth and ideals are the same thing, but a better way to put it might be that there's always an element of one in the other. Black and White are full of references to the complimentary/dependent element of yin and yang. In the early game he talks about pursuing his ideals in Black (remember that in pokemon yang/white = truth and yin/black = ideals) while in White he talks about pursuing the truth. After your final fight, in Black he says that your truth was stronger than his, and in White he says that your ideals were stronger.
The reason for N's problems is that he's too focused on one or the other, ideals or truth, yin or yang. This imbalance is corrected by the player, who gradually helps him accept what he was lacking, bringing him closer to understanding both the dualistic element of reality, but also Taiji, the Supreme Ultimate, as a whole.
tl;dr it's all just silly ching chong chinaman philosophy but for babbies
