Successfully complete one of the following tasks to get a trophy:

  Warrior (Bronze): Won 5 or more battles in Online Mode. 
  Gladiator (Bronze): Won 25 or more battles in Online Mode. 
  Rookie (Bronze): Competed in 10 or more battles in Online Mode. 
  Veteran (Bronze): Competed in 30 or more battles in Online Mode. 
  Champ (Bronze): Competed in 100 or more battles in Online Mode. 
  Striker (Bronze): Executed a counter-attack at least 10 times in Versus Mode 
  or Online Mode. 
  Sniper (Bronze): Executed a counter-attack at least 30 times in Versus Mode or 
  Online Mode. 
  Bull Fighter (Bronze): Inflicted critical counter-attack damage at least 10 
  times in Versus Mode or Online Mode. 
  Slow Starter (Bronze): Cleared Arcade Mode within 10 minutes. 
  Speed Star (Bronze): Cleared Arcade Mode within 8 minutes. 
  Cannonball (Bronze): Cleared Arcade Mode within 6 minutes. 
  Hero (Silver): Won 50 or more battles in Online Mode. 
  Master (Silver): Competed in 300 or more battles in Online Mode. 
  Razor Edge (Silver): Executed a counter-attack at least 50 times in Versus 
  Mode or Online Mode. 
  Lightning (Silver): Cleared Arcade Mode within 4 minutes. 
  Legend (Gold): Won 100 or more battles in Online Mode. 
  Speed King (Gold): Cleared Arcade Mode in under 3 minutes and 30 seconds. 
  King of Fighters (Platinum): Unlock all trophies.