VIPER(PCゲーム) VIPER
Eroge and bishoujo game series from Sogna (bankruptcy 2000).
* Viper V6 * Viper V8 * Viper V10 * Viper GTS * Viper V12 * Viper V16 * Viper BTR * Viper CTR * Viper F40 * Viper M1 * Viper Island Vol.1-6 * Viper F50 * Viper GTB * Viper Paradice/Viper Langerie Black, Viper Purple and Viper Red * Viper GT1 * Typing ViperViper Typing * Viper M5 * Viper RSR * Viper M3 * Viper V6R * Viper V8R
Viper GTS was made into a three part hentai anime series in 2002 by Studio G-1 Neo.
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