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.

The King of Fighters XIV (??????????????? XIV, KOF XIV for short) is the latest work of the most classic fighting arcade games - KoF series (produced by SNK). It drew lessons from the "3D character + 2D fighting" design of Street Fighter 4 & 5, and became the first work in the whole KoF series that is totally rendered in 3D engine. Meanwhile, it has also become the pinnacle work of all fighting games.

First, you should know what M.U.G.E.N is. M.U.G.E.N is a free, non-professional 2D fighting game engine that only made for personal use on DOS, Windows and Linux platforms. Its was developed by Elecbyte group using the C language and Allegro libraries, and gives the characters from different ACG (Animation, Comic, Game) a common platform to fight with each other.

In fact, PGM2 emulator is a special revision edition of MAME just compiled with the PGM2 driver (pgm2.c). Or let me put it another way, PGM2 emulator was developed based on the MAME.

After "Oriental Legend 2" sweeping over the arcade market, the high-profile classic action arcade game series derived another new work - Knights of Valour 2: New Legend (AKA: 三國戰紀II：横扫千军, 三國戰紀2：盖世英雄). It was released for PGM2 arcade system board by IGS in 2008, has no direct relations with the whole series of Knights of Valour 2 on PGM platform.