You can try it for free on PlayStation 4 and PlayStation 5
SNK has released a free demo version of The King of Fighters 15 for all PlayStation Store regions. All PlayStation 4 and PlayStation 5 owners can try out the trial version of the fighting game. Since April 30, a similar game version has been available on PSN in Japan region. However, the localized version only appeared this week.
The demo includes training and versus modes, as well as a roster of 15 characters, including Shun'ei, Meitenkun, Benimaru Nikaido, Isla, Heidern, Dolores, Kyo Kusanagi, Iori Yagami, Chizuru Kagura, Terry Bogard, Ryo Sakazaki, Chris, Mai Shiranui, Athena Asamiya, and Kula Diamond.
You can find The King of Fighter XV Beginners Guide via the link to quickly understand the mechanics and features of the fighters.