DARKSTALKERS 3.
I'm sorry, but this game is... FUCKING BADASS!
Also, I played this for 2 hours earlier;

Irritating Stick.
Basically, you guide a stick through an electrified maze, and that's it. There are occasionally robots that chase you and stuff. Sounds boring, doesn't it? Well, uh yeah, maybe. But uh... I dug it.