I have a problem with a stage texture I made...

As you know, when the enemies are attacked or
POW'd Triforced'd, they turn into items that you can pick up and throw. The problem is, the files for the Shellcreepers and Sidesteppers as items aren't located in the STGFAMICOM.pac, so I can't edit them. I couldn't find them in common3.pac, either... Does anyone know where they're located? I'd really like to edit them so no Shellcreepers and Sidesteppers appear.