The game that started the whole Viper series (and thus pretty much Sogna's career,) it featured animated scenes, and the three mini-story set-up that would be followed in last games such as 8 and 10. There's no real interactivity, that wouldn't come until later Viper games. The succubi from one of the three shorts would later return as a more... fleshed-out characters in Viper GTS