I'm proud you've made the commitment to rip the entirety of the Yoshi's Island levels.
Also, I've checked the list of levels on Golden Egg and apparently, they didn't list the Secret levels (must be why they call it "Secret Levels"), so it looks like these very levels will have to be painstakingly ripped via SNES emulator or vSNES + the Sceneviewer (whichever works better with you).
Excellent job with these rips.
EDIT: Never mind ripping the secret levels with vSNES. I forgot that these secret levels are GBA-exclusive.
Also, I've checked the list of levels on Golden Egg and apparently, they didn't list the Secret levels (must be why they call it "Secret Levels"), so it looks like these very levels will have to be painstakingly ripped via SNES emulator or vSNES + the Sceneviewer (whichever works better with you).
Excellent job with these rips.
EDIT: Never mind ripping the secret levels with vSNES. I forgot that these secret levels are GBA-exclusive.