Keranu No seriously, playing Snatcher with the light gun is absolutely useless! There is just no accuracy of shooting what so ever! I think I even tried putting the Justifier directly on the screen and it didn't even work.
I never really had bad problems with the Justifier for this game or Lethal Enforcers. The type and size of the TV you are using does make a difference for this though. My old RCA 20" from 1993 worked really well with the Justifier. As for my flat 27" Sony WEGA, I had turn up the contrast a little, sit a foot or two further away and also had to aim 1" under the bullseye for the calibration. Also, I personally like how there are more scenes and stuff in the Sega CD version. I especially like it when you type in KONAMI on the Jordan computer for the unedited mode.
As for SF2 CE' for the PCE. I find this version to have the best control ever. The 6 button Avenue pad gives me no problems with control at all. One of my favorite controllers to be honest. I got my controller used and it is broken in just right.
With LOT, I played the Sega CD version 4 years before I even touched the Super CD version. So I was adjusted to the music of the Sega CD version even though the Super CD version sounded cleaner. Of course after owning the Super CD version for a while and playing it more I now look both remixes a lot. I still like the rougher Sega CD music a slight bit more since it sounds like a band just jamming to a live recording. As for the graphics, I have to admit the Genesis version can make you go "yuck!!" here and there.