Heres the Emulators for Game Boy Advance:

Amstrad CPC
Paco
Arcade
Asteroids
Black Tiger
Centipede
Ghosts n Goblins
Greenboy Attack
Murdoc
Pacman
Punchout GBARGBArcade
Remuadvance
Son Son GBA
Super Bug Advance
Space Invadors
Yie ar KungFu
Atari 2600
GBA Atari 2600
Atari 2600
Atari 2600vcs
BBC Micro
PocketBeeb
Chip 8
8Ball
Chip 8
Dr Chip 8
Colecovision
ColEM
CoG
Colecotech
Cologne -Unnofficial Version
Game Gear
Dr SMS
PocketSMS
Gameboy
DrGB
GBX
GBonGBA
GoomBA
GoomBA Colour
GoomBA Movie Player Edition
Goomba Palette
PocketGB
Super GoomBA
Unofficial GoomBA
MSX
MSX Advance
NeoGeo Pocket Color
NGP Advance
Nes
Unofficial Famicom
Famicom
HVCA
Infones
PocketNes
PocketNes Movie Player Edition
PocketNes Unnoficial
PocketNes K
PCE Engine
PCE Advance
Sega Master System
Dr SMS
PocketSMS
SMS Advance -Unofficial Version
SMS Advance GBAMP
Sharp X1
X Millenium Advance
Snes
Snes Advance
Snes Advance Hacks
Snes Advance SnesPad Version
Snezziboy
Spectrum
Foon
Zx Advance
Texas Instruments 83
TI83 Emulator
Watara Supervision
Wasabi
Wonderswan
Swanadvance