Rescue a friendly hero from a cage.
Defeat 25 Goblin Spearmen.
Complete any of the mini side-quests given by an NPC in a level.
Defeat 9 enemies in a level while remaining in Pacifist Mode.
Complete a level without triggering any alarms.
Complete a level without using any Skills or Powers.
Open a total of 20 Treasure Chests in a single game.
Collect 12 Pacifist Orbs in a level.
Complete a game in without using the Teleportation Shrine.
Complete at least 3 levels in Pacifist mode to unlock the Bone Dagger!
Achieve a score of 25,000 in New Game Plus to unlock the Musket Gun!
Complete the game 3 times to unlock the Infinity Sword!