it depens what emulator you want if you type in emulators to goolge and bring the first one up that should have a large collection
emulator-zone.com
There is no emulator for the Xbox.
Get Your Emulator From Emulator Zone (nullDC) Games dcisozone BIOS Emuparadise
You need to get a emulator to play them. Go to the emulator zone to download a emulator. Remember to get a emulator that can run your type of game.
Dolphin emulator
emulator-zone.com
There is no 3DS emulator, not yet.
on the website where you got the emulator
Hercules - emulator - was created in 1999.
Dolphin - emulator - was created in 2003.
UAE - emulator - was created in 1996.
emulator-zone.com visualboyadvance is the best.