MetalMario64

Raising the Bar In the Main Campaign, upgraded one attribute (Health, Shield, or Salts) to its maximum level.

Master Ninja Complete any level using only the knife to kill enemies.

Bird on the Ground Shoot down an enemy helicopter with an RPG in the single player campaign.

Liberator Complete all Outcast Rescue Missions.

The First Horseman Complete 'Shock and Awe' on Veteran difficulty.

Black Sheep Every family's got one.

Desert Storm Find the Desert Eagle in 'Crew Expendable' and kill 5 enemies with it.

Master of the Wilds Complete all Hunting Challenges.

Touch My Rear Use the rear touch pad to climb a rope or chain.

The Second Horseman Complete 'Safehouse' on Veteran difficulty.

Rise and Fall After an uruk kills you to become a Captain, help him become a Warchief, then kill him.

Tonic Collector Collect or Invent 58 Tonics in the Physical, Engineering and Combat tracks

Call of the giants You sounded a giant horn.

Found Cohen's Room The player has entered Sander Cohen's personal quarters

Time Paradox Kill Makarov and complete your mission

The Man in the High Tower Find and use the hidden cache in 'Heat'.

Burning Vengeance Perform an Execution on a flaming Berserker.

Turtle Soup You helped the turtles to the sea.

A sad tune You made someone feel better.

Windpipe You made the inventor dance.

No Power in Numbers Help a Captain survive a Recruitment Power Struggle, and then kill him and all his new recruits.

Research PhD Max out all possible research

Whale Song You practised singing.

Dogs. I Hate Dogs. Kill 20 attack dogs with a knife.

Stinking Rebels Brand 5 Bodyguards of a Warchief, turning them against him in combat.

Falling star Make a wish.

Man versus Machine Alert the enemy helicopter in 'All Ghillied Up' and take it down.

Behind the Curtain You found a secret.

Avid Inventor Successfully invent at least 100 items

Love Birds You re-united the two love birds.

Pieces of the Puzzle Obtain a key by completing the second Riddler trial.

The Shot Complete 'All Ghillied Up' and 'One Shot, One Kill' on Veteran difficulty.

Flyswatter Destroy 8 enemy helicopters in 'Heat'.

The White Rider Liberate 30 slaves in 180 seconds while riding a caragor.

Eyes and Ears Find 30 enemy intel items.

The Third Horseman Complete 'Heat' and 'The Sins of the Father' on Veteran difficulty.

The Fourth Horseman Complete 'Game Over' on Veteran difficulty.

Deep and Hard Complete the game on Hardened or Veteran difficulty.

A Mighty Doom Acquire a level 25 Rune.

The Cat and the Bat Obtain a key by completing the third Riddler trial.

Weapon Specialist Acquire all upgrades for all weapons

The Ultimatum Complete 'Ultimatum', 'All In', and 'No Fighting in the War Room' on Veteran difficulty.

Jekyll & Hyde Stop the bank heist on Miagani Island and lock up the master mind in GCPD.

50 Kills: Dragon Sniper Defeat 50 enemies with the Dragon Sniper.

Beat School: Triumph Horns A few notes with a huge result!

Beat School: Jazz Hands Swing to the beat of the cool jazzy brass riff!

Beat School: Battle of the Saxes Practice your sax skills by creating this cool phrase.

Beat School: Blow Your Own Horn Learn the brass basics by constructing this simple trumpet loop.

Beat School: Brass Knuckles Put up yer dukes, and make a funky horn loop!

Stay Golden Use a Golden Key.