This is the concept of roms and emulators: a rom is a game cartridge like the ones you play on game consoles. A emulator is the game console that let's you play the games you'd like. So to play the games you have to load the rom through the emulator.

Go To the Roms Section

Emulators:

Snes Emulators:

Zsnes

Snes9xw

GBC Emulator:

Hello Game Boy

Nintendo Emulator:

Nesticle

Sega Emulator:

Kega