This game serves as an eternal remainder of the absurdity of Japanese copyright law. Game companies have much more political clout in Japan, allowing a simple simulator of a game like Sound Voltex to have to go to extreme steps of disabling community features and modding support to avoid getting in trouble with the law, while in the West, a man can literally name a game "osu" and get away with it. Also runs like dog shit. Play Unnamed SDVX clone instead.