To understand the hype of the keyword, you need to know the patch notes. The "new" 0.9b update changed the meta:
The only official source for the standalone player is the McLeodGaming (MLG) Official Site. Do not use Softonic, CNet, or random MediaFire links.
Seriously. The latest version (Beta 1.3) is:
Download from: mcleodgaming.com → SSF2 → Downloads
No emulator, no browser plugin – just a standalone game.
Do NOT download from: Softonic, Uptodown, or random YouTube video descriptions. These are where fake "viruses disguised as v0.09b" live.