does anyone know how I can get zero's D-glaive because I already have all..

To get the D-Glaive, go to the Pitch Black level, and continue like normally MAKE SURE YOU HAVE the COPY SHOT ON ONE OF THE SOILDERS then go like you would to turn the power on. When you do, Go back the way you came (as if you wanted to go back to the starting room) and there will be platforms you can jump onto, jump onto them and continue accross and above the door will be a rare metal that looks like the ones that have Zero's weapons. Grab it and you will get the D-Glaive. (It is either above the door you came in when you first came in the room or above the exit. But you need to have Zero to reach it so you can use the double jump to get it.)