Gorf is one of those games that's instantly nostalgic to me, along with Pengo. When I was a school kid my local record store had one in its little back-room arcade, together with Pengo, Taz-Mania, and some others I can't remember, and I spent a lot of time not managing to get any high scores

Even on a relatively powerful PC Gorf emulation seems a bit jittery to me. I don't remember it being like that on the original machine. I play it on my cab quite a bit which has a dual-core AMD64 4800+ processor, but the Laser and Galaxian sections seem to run a bit slow. I'd like to play on a real machine to compare it.
I recently went to a museum that had Defender and Galaxian cabs and it was interesting to compare them to the emulated versions on my mame cab. Turns out I've got the HLSL settings for those games pretty close to the original CRT image.