Why is KoF 98 so popular?

I think 98 is considered among the best because it was mainly designed for competitive PvP, making it one of the most balanced games in the series, while the previous versions had an stronger focus in story and innovation. Same happens with 2002. Personally, I always liked 97 more than 98 , and 99 over the later ones.

expressly, Does KoF 98 have online?

It isn’t the revamped and optimised KoF ’98: Ultimate Match, that was made previously available on PC, Xbox 360 and PS2, and featured training modes and online play. King of Fighters ’98 is available now on PS4 and Xbox One, priced at $8. The game has also previously been released on Nintendo Switch.

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