Lots of FPS and some heavy story based games in here! I'd like to add Planescape: Torment (unless I missed someone mention it already!).
Probably the best narrative of any game I've played on any system. If we include all books and movies and music it still ranks within the top 5 of top media...
I loved the Splatterhouse series! If you haven't given it a shot yet, try picking up or emulating Splatterhouse: Wanpaku Graffiti for the famicom. It never made it to the US but imagine a cutesy version of Splatterhouse with classic monster movie bosses (Dracula, Werewolf, et cetera).
It was...
Oh wow, I think I definitely spent the most time with Ninja Gaiden for the NES. I had played that game so much that by the time I hit high school I was effectively a really slow speed runner without even realizing it!
With practice I've gotten my time closer to 15 minutes to get through the...