odogzero

Inconspicuous Remain undetected in a whole checkpoint

Boss Beaten: Metal Slug 2 Defeat the 1st boss in Metal Slug 2.

First Step Earn 3 Stars on any level in Adventure Mode

Island and Chill Complete The Last Resort.

High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.

I'll put this spear into... Kill Sadatame without getting hit

Silent Sniper Complete The Last Yardbird as Silent Assassin.

Dark Side Complete zone 21 without rescuing any survivors.

Chapter 2 Speedrun Complete a Speedrun of Chapter 2 below the target time.

Hokkaido Escalated Complete Level 5 of an Escalation Contract set in Hokkaido.

Excellence in Leadership Obtain the decoration given to an officer who has demonstrated remarkable skill as a leader through mastery of the art of command.

Sandman Subdue a person

What to wear? Own 10 costumes.

Chapter 4 Speedrun Complete a Speedrun of Chapter 4 below the target time.

Chimp on the Barbie In Ascension, kill a space monkey with a fire trap.

Double Trouble Complete The Pen and the Sword in Multiplayer.

Chapter 3 Speedrun Complete a Speedrun of Chapter 3 below the target time.

Green Series clear Get a silver medal on every green track

Just Like Old Times Dispatch the professor with a shot to the groin.

Crab Attack Defeat Crab Force in the Underground Mine.

Excellence in Technology Obtain the decoration presented to a squad shown to have assembled exemplary tanks through tireless work and exhaustive development.

The Force Complete Zone 18 without upgrading weapons.

Vengeance Killed 5 Mathusians with fire or electricity.

Whoops Achieve your first accident kill

Save the Poet Complete The Pen and the Sword in Single Player.

Vulnerable As the Predator, knock down a Fireteam member while your energy is overloaded

Lethal Efficiency Perform a Fatality ×3 combo during any Career mode case.

Chain Gang Killed 2 Malthusians within a timed chain attack.

Chamber of Secrets Locate room 899

Group Introduction You earned the title "Group Introduction"!

Chapter 6 Speedrun Complete a Speedrun of Chapter 6 below the target time.

The Emotionless Being Kill 3000 enemies.

Hi Score Collect 1,000,000 points over all story levels you have played.

Gallian Front Commemorative Obtain the decoration made to celebrate the initial publication of the completed On the Gallian Front, given only to those it chronicles.

Mindful Vandalism Place a sticker or a decoration on another player's sackperson.

I'm Faster Than You Defeat Kung Fu Master.

Operation Hong Kong Defeat Yensen.

Distinguished Hunter Reach Player level 50
0/50

Making mountains out of molehills Kill 100,000 enemies.

Leave no stone unturned Find all lore collectibles

Two for One Complete Crime and Punishment in Multiplayer.

The Headsman Perform 50 executions.

Falcon and the Snowman Complete Crime and Punishment in Single Player.

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

Chapter 5 Speedrun Complete a Speedrun of Chapter 5 below the target time.

Dear Brother Play as Bunji.

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

Finale Unlocked the Ending Movie

Grate Hall Access the Oubliette