FB Alpha is a multi-arcade console emulator that takes up less system memory and requires lower machine configuration than MAME, and runs faster with better graphics. FB Alpha Shuffle (full name: Final Burn Alpha Shuffle, FBA Shuffle or FBAS for short) is an unofficial variant version of FB Alpha with many new/different features (that FB Alpha does not support), maintained by KOF2112, Leaf, and Creamymami from China.