Visualboy Advance CE is an emulator that supports Gameboy, Gameboy Colour and Gameboy Advance games. Included in this torrent is the emulator, and a small assortemnt of games to go with it. There is no installation necessary, just extract and play.
Final Fantasy Tactics Advance
Legend of Zelda - Oracle of Seasons
Legend of Zelda - Links Awakening DX
Lufia - The legend Returns