Boycott Advance is a SDL based Gameboy Advance Emulator. Boycott Advance/SDL is based on the BA core, with one essential difference: it uses the Simple Direct Media Library rather than the DirectX libraries. Consequently, it can be used on many different platforms, while still using the excellent BA core. Unlike the original BA, BA/SDL doesn't have any GUI(except for the BeOS version), though for those who dislike commandline programs there are several frontends available (see download section).