When boot into ROM I can't access anything in the system folder. I am assuming that is where pyro is, as it doesn't seem to be anywhere else that I looked.
The boot ROM is a read-only system disk. That's not where Pyro will be. Pyro will be inside the System Folder on the Hard Drive.
When booted using the boot ROM, open the Hard Drive by double clicking. Locate the System Folder, and look inside. You cannot double-click system files, they aren't programs. Only programs, documents, folders, and disks can be double-clicked. A system file is none of these.
Depending upon the version of Macintosh System Software that is installed on the hard drive, Pyro may be in a different place. It may exist inside the main System Folder itself, or it may be elsewhere. To disable it, once you locate it, drag it out of where it is onto your Hard Drive icon on the desktop. That will move it there. Restart.
If you want to start your Mac from the hard drive, and you don't have install disks, you can copy the system folder from the ROM boot disk onto your hard drive to boot from there. When first booted from the ROM disk you can simply double-click on the hard disk, locate the System Folder, double-click the System Folder, and drag the Finder out of that System Folder onto the Hard drive icon. This will move it outside of the System Folder, and disable it. Close the window of the System Folder. Click on the name System Folder and rename it to have OLD after or before it. Next, drag the System Folder from the ROM boot disk to your Hard drive icon, and this will copy the boot files from the ROM disk onto your Hard drive. Restart, it should boot from the hard drive. The System Software on the ROM boot disk is minimal, and only for getting the essentials working on the Mac. It's a short-term solution.