ich liebe der cuckstuhl

I misinterpreted this for a second and thought you were saying you would lynch the ghost

Depends on the gun and the entity. A shotgun is a good general purpose weapon against most entities, especially since you can load it with rock salt, silver, or anything else an entity might be weak to.

A given type of gun might work better against certain entities, for instance a WW2 vintage mosin-nagant will be effective against Germanic entities like the krampus, while a cowboy ghost might have to be put down with a colt single action army. You can also anoint bullets with holy water, stuff like that.

When Kojima scans feet, he does not destroy them.