no (WW is not on a ROM chip), yes (not available).
If you are trying to ask for what I think you are trying to ask for...dont ask further or risk bannage.
No- its called an ISO. There are GC emulators, Dolwin and Dolphin. Dolwin is released but cannot play WW yet. Dolphin is unreleased but can play WW to an extent at a slow speed.
*ISO. Disk images are called ISOs not roms. You can download Dolwin - a GC emulator, but it has not reached the level where it can play commercial games, just homebrew ones.
It takes a *lot* of time and talent to code an emulator, and a GC emulator will require an ultra-super-hyper PC to run. Buy a GC for God's sake!