KOF'98 UM OL brings the classic King of Fighters battle fighting game right to your mobile device, revamped with a fresh, modern look. With over 150 fighters and a multitude of next-generation NEO combat modes, this game invites you to assemble the strongest team composed of six fighters and three aid fighters. New players are welcomed with the fan-favorite Instinct Iori for free upon login.

The gameplay is elevated through its unique QTE (Quick Time Event) combo system, allowing you to unleash powerful attacks with precise timing. Train your fighters through RPG progression, upgrading their equipment and leveling up to unlock devastating abilities. Dive into an extensive campaign with over 70 levels following the classic KOF storyline, participate in numerous PvE challenges, or engage in intense PvP tournaments to claim the true King of Fighters title.

What makes this game a must-play for fans is its authentic KOF experience — featuring all the classic fighters, iconic battle arenas, special moves, sound effects, and even the original Japanese voices. Whether you are a long-time fan or a newcomer, KOF'98 UM OL offers immersive gameplay and nostalgic elements that bring the essence of the series to your fingertips.

Despite its exciting features, users have reported occasional bugs and login issues that affect gameplay experience. The game includes in-app purchases and has a somewhat steep progression curve especially for free-to-play users, with some challenges and character acquisition padlocked behind premium currency.

Overall, KOF'98 UM OL is an entertaining adaptation of a beloved fighting franchise with ample content and competitive modes, though it requires patience and occasionally dealing with technical hiccups. Perfect for fans looking to relive classic moments and newcomers seeking a rich RPG fighting experience.