"The King of Fighters 98: Ultimate Match" is a revamped version of the classic King of Fighters '98, offering rebalanced gameplay, an "Ultimate" fighting mode, an unlockable art gallery, and an impressive roster of 64 fighters, including 10 new characters not seen in the original. Players can also enjoy the original Neo Geo version with added support for 480p resolution.

With 5 engaging game modes like Arcade, Single Play, Endless, Practice, and Challenge mode, players have a variety of ways to experience the intense fighting action. The game provides customization options such as adjusting character sprite size, softening the sprites for a smoother look, and toggling between 3D and 2D backgrounds. The Ultimate fighting mode offers unique toggles for Move Type, Evasion Type, and Power Gauge, adding depth to the combat experience.