Thanks so much for a detailed reply 
As soon as I read the first few words of the 4th paragraph I went OMFGTHERESABACKGROUNDINPUTBUTTONNOWONDERTHECHEATSEARCHDIDN'TWORK and immediately figured it out. I'm using an XBox360 controller as an emulated GC controller for FE:RD. Looks like (for Z+D-Right held):
$Button conditional (Z+Dr)
0A3D7928 00000012
Do this
Seems to work ok now - didn't work for a while, not sure why but I restarted the emulation and it worked
As soon as I read the first few words of the 4th paragraph I went OMFGTHERESABACKGROUNDINPUTBUTTONNOWONDERTHECHEATSEARCHDIDN'TWORK and immediately figured it out. I'm using an XBox360 controller as an emulated GC controller for FE:RD. Looks like (for Z+D-Right held):$Button conditional (Z+Dr)
0A3D7928 00000012
Do this
Seems to work ok now - didn't work for a while, not sure why but I restarted the emulation and it worked