Gameboy Advance Emulators

The successor of the all time classic that shortly became a hit just like it's "father". The fact that Gameboy Advance plays the older Gameboy titles means you get to use the older games. There is also another version of the Advance called SP.

Specs:

CPU: 16 MHz 32-bit RISC-CPU + 8-bit CISC-CPU
Memory: 32KB WRAM + 96KB VRAM + 256KB WRAM
Screen: Reflective TFT Colour LCD
Screen Size: 40.8 mm x 61.2 mm
Resolution: 240 x 160 pixels
Display Ability: 32 000 colours
Sound: Mono speakers, stereo headphones
Multiplayer Options: Up to four GBAs, up to two GB/GBCs
Power: Two AA batteries, or battery pak
Battery life: 15 hours for batteries, 10 hours for battery pack
Dimensions: 82 mm x 144.5 mm x 24.5 mm

Emulators

Visual Boy Advance	Windows	Freeware	Rating: 8.5 (1285 Votes)
Probably the best Gameboy Advance emulator available.

BizHawk	Windows	Open-Source	Rating: 8.1 (761 Votes)
Multi-system emulator designed for Tool-Assisted Speedruns (TAS)

NO$GBA	Windows	Freeware	Rating: 7.7 (260 Votes)
Gameboy Advance Emulator with multiplayer support. Now Supports Nintendo DS as well.

RetroArch	Multi-platform	Open-Source	Rating: 7.3 (186 Votes)
Frontend for the Libretro API, effectively a multi-system emulator

RascalBoy Advance	Windows	Freeware	Rating: 7.2 (5 Votes)
Gameboy Advance emulator.

higan	Windows	Open-Source	Rating: 6.5 (164 Votes)
Multi-system emulator with emphasis on emulation accuracy

BatGBA	Windows	Freeware	Rating: 6.2 (21 Votes)
Gameboy Advance emulator.

BoycottAdvance	Windows	Freeware	Rating: 5.1 (10 Votes)
Good GBA emulator with sound. Runs several commercial games.

DreamGBA	Windows	Freeware	Rating: 4.4 (15 Votes)
Supports sound and runs some games. Uses a seperate loader program. Requires GBA BIOS.