The ACA NEOGEO Selection Vol.9 for Nintendo Switch in Japan is a physical game featuring 10 classic SNK games in the fighting genre. The games included in the collection are Ryuko no Ken, Art of Fighting, and 龍虎の拳. This multilingual game offers players the chance to enjoy a variety of fighting games from the renowned publisher SNK, making it a must-have for fans of the genre. The game is region-free, allowing players to enjoy the games regardless of their location.