While no Super Nintendo fighting game offers a full roster where every human character morphs into an animal—a mechanic later popularized by 3D fighters like Bloody Roar—the SNES library still delivers plenty of beastly combatants and partial transformations. Here's a breakdown of the best options for fans of feral fighters.
Closest Matches: Primal Rage for an all-beast roster, or Killer Instinct for multiple hybrid fighters. If you recall a specific "human turns into animal" move, it might be a Fatality/Animality from Mortal Kombat 3/Ultimate MK3 or a character's super move.