>>1410285Valis I on the Turbografx-SuperCD (TG-SCD) and Super Valis IV on the Super NES were actually pretty good. Valis III on the Sega Genesis wasn't bad, either. The rest of them though were either very mediocre (Valis I on the Sega Genesis, Valis II on the Turbografx-CD), too difficult (The Turbografx-CD versions of Valis III and Valis IV) or just downright awful (Syd of Valis aka Valis SD, the NES and computer versions of Valis I)
The only Valis games I'd consider "borderline Eroge" (besides Valis X) would be all of the computer versions of Valis II (Not the turbografx-CD version). There is partial nudity in one cutscene in those versions, and there's lots of blood and gore, too. The TG-SCD version of Valis I is "borderline borderline Eroge", since shows Yuko getting dressed in the opening cutscene (you can see her bra/panties, that's all), and you can see her panties every time she jumpes; but other than that, it's nothing major.