Kamen Rider Kuuga, another Playstation game based on the tokusatsu franchise, likely shares similar gameplay mechanics with other entries in the series. Given the era, it could incorporate beat 'em up or action-adventure elements. The game likely featured the protagonist Kuuga along with his various forms and adversaries from the show.  Further details on its developer, publisher, and specific gameplay features would require additional investigation. 

Kamen Rider Kuuga

Kakugo No Susume