User blog comment:Kodachi-sama/HINT in the Ruby Trailer??/@comment-5607322-20130304030815/@comment-5607322-20130304033543

I also noticed some other things;

1) This appears to be the only time Ruby uses one of the cross clip bullets to fire at an enemy.

2) Unlike the standard bullets she uses, the cross clip's don't physically damage the opponent's body.

3) When the scythe transforms into the glaive, the muzzle of the gun rotates too, but after it's rotated shot's still come out from it even thought it's at a 90° angle to the rest of the barrel. So I'm not sure if it means that Crescent Rose doesn't fire anything close to normal bullets, or it's just anime logic.

The barrel would also have to telescope in to fold up as small enough to fit on her waist, so I'm going to go with cartoon logic.