This game is based on Kamen Rider Kabuto (仮面ライダーカブト Kamen Raidā Kabuto?, Masked Rider Kabuto), a Japanese tokusatsu superhero television series. This tv show is the sixteenth installment in the popular Kamen Rider Series of tokusatsu programs. It is a joint collaboration between Ishimori Productions and Toei.
The video game based on the series was produced by Bandai for the PlayStation 2, under the name Kamen Rider Kabuto. Released on November 30, 2006, it is a fighting game featuring all Riders seen in the show and movie, along with Hyper Gatack. The game features 5 different modes of play, ranging from a story mode to several multi-player modes.
Source: Wikipedia, "Kamen Rider Kabuto", available under the CC-BY-SA License.