Nostalgia.GBC Lite is FREE!
Give it a try!
Nostalgia.GBC is GPLv3-licensed.
You can read the whole GPL text here: GPL
DISCLAIMER: We are in no way affiliated or endorsed by Nintendo or Nintendo of America.
"Nintendo", "Game Boy", "Game Boy Color" are registered trademarks of Nintendo of America Inc. All other trademarks are properties of their respective owners.