Kill 500 enemies
Earn a total of 10,000 Skill Points (including spent)
Kill 50 enemies
Kill an enemy
Achieve a head stab
Visit all three NPCs in the Hub / Menu
Use all five boss swords at least once
Use the Hellfire sword's special ability
Kill 200 enemies
Earn a total of 30,000 Gold (including spent)
Play in the Arena
Complete the story
Defeat the Knight Boss
Defeat the Viking Boss
Defeat the Mongol Boss
Defeat the Samurai Boss
Unlock all weapons and shields
Unlock all armors and helmets
Use all 40 available upgrades
Complete a stage without taking any damage
