The Syphon Filter Franchise (or Syphon Filter Series) is the collection of games and other media that make up the Universe within the games. The series spans six games released across the Playstation, Playstation 2, Playstation 3, Playstation Portable (PSP) and Playstation Vita and has remained a Sony Exclusive since it's inception in 1999.
China Exhibit ·Colorado Bridge ·D.C. Subway ·Military Base ·New York Slums ·Phagan's Warehouse ·Rhoemer's Fortress ·Washington Park ·Whispering Woods Mortuary
The series have some signature weapons and these are: the Taser, the USAS-12 and the flamethrower.
Additionally an another signature is the presence of trains in every game. As developers said:"We love trains"
Only one game have a Japanese release and is the original Syphon Filter. That version have also an unique briefing interface never seen on other releases and games.
Always the first Syphon Filter is the only with a training video.