Alejandro45901

Power Boost Find and break a sarcophagus.

A very special day Kill 250 zombies with modified weapons.

Bargaining Chip Reunite the separated couple

Making Faces Show the outside world that you're still alive

Just A Memory Now Get ending 2.

Death by Design Obtain a key by completing the seventh Riddler trial.

Words of Power Learn all three words of a shout

No raccoons in here Complete act 2.

IPXSETUP.EXE Win a Multiplayer match

Seriously Good at This The player has completed the game on the Hard difficulty setting

On the Fly In the Main Campaign, killed 30 enemies while riding a Sky-Line.

The Road Home Destroy all of the militia APC's.

The Monster Machine Track down and apprehend the serial killer.

Floors are for losers Wall run for a total of 1/2 mile (805 meters).

Busy, busy, busy Finish 75 quests cumulatively.

Specialist Earn the Mastery for a weapon mod

The Riddle Factory Obtain a key by completing the eighth Riddler trial.

Citizen Buy a house

Hackification Invade and successfully hack 10 enemy Fixers in Online Hacking

Pick Pocket Steal the score of a lifetime

Shoot it Until it Dies Defeat the Cyberdemon

Not how it Happened Use the Power of Time 20 times.

Thorough Shopper Complete all Challenges for a single mission.

True Commitment Reach level 60 in multiplayer.

Traced Get tailed 5 times

Tied loose end Deal with Tahir

I Gotta Believe! Complete Arcade Mode with PaRappa

Zeus May Cry Finish the game (Hard Mode)

Gotta find'em all Find 60 collectibles.

Champion Win a Versus Match against a team of three AI opponents

Bon Voyage In the Main Campaign, killed 20 enemies by knocking them off Columbia.

Shopaholic Buy every upgrade and character in multiplayer.

Gatekeeper Join the College of Winterhold

Mega Spatula Seeker Get 75 Golden Spatulas.

Combat tested, Doomguy approved Reach Level 5 in Multiplayer

Ship Shape Reclaim the Flying Dutchman's ship in the Flying Dutchman's Graveyard.

God Amongst Men Beat the Challenge of the Gods

Like Dominoes Knock down 5 enemies with one kick.

Scanproof Escape a level 5 police scan

SpongeBob vs SpongeBob! Defeat SpongeBot SteelPants in the Chum Bucket Lab.

Shanghaied Defeat the Flying Dutchman.

The Small Does Not Rule Defeat Robo-Plankton and neutralize SpongeBot SteelPants' Brain.

Lethal Pursuits Obtain a key by completing the ninth Riddler trial.

Big Finish Defeat an enemy by doing a power attack on the fifth hit in a combo.

White Rabbit Object Escape 15 police scans

Kelp Forest of Fear Find all the Lost Campers in Kelp Forest.

A Man Chooses Complete the game on Survivor difficulty

Vertigo Activate the Amplifier

Outnumbered? No Problem Defeat the Hell Guards

And stay down! Use the finishing lunge 20 times.