Character Artwork
Beat 5 matches in arcade mode with a character to unlock the corresponding artwork.

The King of Fighters XII Unlockables

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