Looking for a GameBoy Emulator

Hi all new to the forum, i am looking for a GameBoy Emulator for my PS2, i so far have Nintendo Super Nintendo and Sega fixing to have Neo Geo, so the game boy would be another great edition.. and if possible is there one that supports gameboy game boy color and game boy advanced? if not don't matter, i will take any one as long as its game boy

by the way, that Ultra emulator for the nintendo is great, all but the problem with a few games, such as Legend of Zelda and Punch Out