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Dead by Dawn? Complete Nightmare.

World 7 Unlocked! Generic win message.

The S is for Super Reach max Rank on a single Form

Six Pack In Zombies, upgrade 6 Perk Skills to Tier III.

Like a Fish... in the Air! Use the Bavarium Wingsuit to take off from water.

You Have Tunneled into a New Area Deeper and deeper.

Obtainer Of Rare Antiquities Collect all the treasure hidden on Apoxus Prime

Three's a Crowd Survive your first Clotter encounter

Valley Dweller Play 4 Different Levels

Top That, Tisha! Get five headshots with the Crossbow in quick succession.

Act II Complete Act II.

Stick to the Plan Defeat 50 enemies by performing Stealth Takedowns

Not without a Fight Defeat Ustanak 20 times.

Murder Spree Defeat the BSAA as a creature without dying once.

Stock-Keeping Defeat 1 of each Drone type.

Pit Boss Show that pit who's boss

Beast Slayer Destroy the KRAKEN boss

Ship Overboard Discover the missing experiment

Boy Scout Finish one side quest.

Cave Of Wonders Find all of the secret areas

Formidophobic? Interesting... Destroy 50 scarecrows

If You Are Going Through Hell, Keep Going Complete the secret level 'The Road To Dawn'

Rifle Expert Kill 250 People using rifles (ranked play counts).

Like Tears in Rain Find all the collectibles on Dystopia 2029

Boss 7 Defeated! You really 'alien'ated those enemies!

Something About Magic Form a pentagram with the laser reflectors.

Fastest Man in the Swamp Complete an Extreme Challenge in End of Zoe.

The Dark Side of the Moon Find all collectibles on Moonbase

Staying Alive Return to the game as a human character.

Race Ready Perform Racing Modifications on one of your cars.

Look at the Sly Fox Use the Barrel Roll to evade 10 incoming missiles.

Level Zero Complete all Tutorial Lessons

Maximum Return Play a Joker on a full consensus

Threat Assessment Detect 20 enemies using the Threat Pulse in Multiplayer

Super Buccaneer Grapple Master Defeat 100 grubs after reeling them in with the Hookclaw.

Overthrown Dethrone the King in an online match

Unfriendly Skies Shoot down 30 Afflicted in mid-jump in the main campaign.

Terror in the Blood Defeat Diablo after using an ability that costs health while below 10% of your life.

Rock Portal Scissors Win 3 co-op games of rock-paper-scissors in a row

No Encores Help calm Grace by suppressing the Beat

Fowl Five Piece Get a chain of 5 chickens strung together in Dead Ops Arcade.

What does "#@$%&!" mean? Learn the language of dolphins

Musicfriends J.S. Joust - Start a game with the secret Sportsfriends music option

Speedy Rexecutioner Destroy the Metal Gear REX boss in under 2 mins 30 seconds

Inner Peace Balance an object on your head for 10 seconds.

Door Prize Examine all the vitrified test chamber doors

Break a Leg! Defeat the "Old Friend" (Boss at the end of "Taking Control").

Salt the Earth Defeat 200 Vargul

Boxing-Day Test Super Pole Riders - Play Kalgoorlie on Boxing Day (December 26)

Twice The Firepower Play cooperatively with a second player