Sadly, not everyone emulating will be using the same setup as you. Most will be emulating with their PC, but I can see what you mean. In the main message board there is a script to download emuparadise roms again, check there to see if you can find the light gun games.
"NintenDON'T sue me please haha"
I use a CRT arcade monitor for my PS2 and light gun games work just fine. So.... I want all of them because they are awesome and the only reason I still use my PS2.
I especially want Virtua Cop Elite edition and working Ninja Assault and time crisis.