Yes.
Not that I know of. Personally I don't see any value in those CGs. They are the same ones used for the gallery scenes, only with no dialogue or audio, but if you want them, here you go.
BACKUP file "Game/www/js/plugins/Z_All.js"
Open file "Game/www/js/plugins/Z_All.js" using notepad and add the following to the end of it:
JavaScript:
Wolfzq_Player.prototype.allCgs = function() {
Object.assign(this._allCG, gameAllCG);
}
setInterval(function() {
$w.allCgs();
}, 1000);
Save the file making sure not to have it auto format. Default windows notepad works fine with ctrl+s.
Restart the game.
Edit: I didn't provide the full file since there are several different hacks here that require modifying this particular file and I don't want my stuff conflicting with other's.