SF2

SF2 is an abbreviation used for multiple distinct concepts in different domains. The two most common meanings are in video gaming and audio technology.

Street Fighter II, commonly abbreviated SF2, is a 1991 arcade fighting game developed and published by Capcom. As a follow-up to Street Fighter, SF2 expanded the roster, introduced a competitive two-player duel format, and helped popularize the modern 2D fighting game genre. It featured eight basic playable characters (Ryu, Ken, Chun-Li, Guile, Blanka, Zangief, Dhalsim, E. Honda) with a variety of special moves and the potential for combos, along with boss characters and later enhanced revisions. The game was released on numerous platforms and spawned a long-running series of updates and variants, including home console ports and arcade revisions, contributing to the growth of arcade culture and competitive play through the 1990s and beyond.

SoundFont 2, also abbreviated SF2, is a widely used file format for digital audio sample libraries. The SF2 format stores instrument and preset definitions alongside waveform samples in a single file, intended for use with software synthesizers and samplers such as FluidSynth, LinuxSampler, and various digital audio workstations. Introduced in the late 1990s, the format remains popular for distributing multisample instrument banks and realistic timbres in multimedia applications. SF2 files can be edited or generated with dedicated editors, enabling access to instrument data for playback, sound design, and library distribution.