Zero--PSN

Damned if You Don't Buck the chain of command.

Upping your Arsenal Buy half of the weapons.

Now We Need a Really Big Tissue Defeat the Wigwump.

Aced It Get an A+ on any chapter

Legendary Pilot Complete the Campaign on Master

A Cold Wind Blows Defeat Pei Pooh

Apprentice Plumber Earned a silver medal or better in Endestria Energy Race II.

Unfriendly Fire Save a bullet.

Mouth To Mouth Revived 10 players with oxygen.

Mushroom Slider Earned a silver medal or better in the Rift Plane Sliding Race.

First Takedown Perform your first Takedown. Civilians don't count, so be nice.

Rocketeer Launched 4 rockets from Elpis.

360 No Scope While airborne, spun 360 degrees then got a kill with a Sniper Rifle without using the scope.

Moxxi's Sampler Tried all the Moxxtails in the Up Over Bar in Concordia.

Combo Pro Perform an 8x combo

The Phantom of Bravery Completed “The Phantom of Bravery.”

Second-String Pitcher Earned a silver medal or better in the Pleajeune Pitching Challenge.

Once More With Feeling Completed the mission "Return of Captain Chef".

Unlimited Shifter Earned a silver medal or better in the Rift Plane Unlimited Time Attack.

Never Saw it Coming Boost jump, dash forward, then air stomp on an enemy.

1989 Kill 1989 enemies
0/1989

Tricked Out Fully upgrade one weapon.

Almost There Complete 50% of Story Mode

Galactic Hero Kill 500 enemies.

Do Shoot the Messenger Delivered Zarpedon's message.

Spog 2.0 Defeat Commander Spog.

Maximum Shifter Earned a gold medal in the Rift Plane Unlimited Time Attack.

Dog Lover Kill 99 dogs
0/99

Truffle Slider Earned a gold medal in the Rift Plane Sliding Race.

Keep the Meter Running Don't let the air taxi take damage in Luminopolis.

Special Forces Cleared every mission and challenge mission in the Special Forces Pack.

Wheeler Dealer Collect 10 Vehicles.

Superspy Cleared every mission and challenge mission in the Spy Pack.

National Amateurs Champion Complete National Amateurs Championship.

That Tasted Purple! Had Purple-rated gear or better equipped in every slot.

Melee Legend Kill 150 enemies with melee.

First Hack Perform your first Hack successfully.

A Line, Held Choose restraint.

Rooftop Runner Earned a gold medal in Auldnoir Free Race II.

World-Class Plumber Earned a gold medal in Endestria Energy Race II.

All-Star Pitcher Earned a gold medal in the Pleajeune Pitching Challenge.

Now That's a Big Fish Defeat King Sepiad.

Vac-U Legend Kill 50 enemies with the Vac-U 4000.

Overload Legend Use the Co-op overload to kill 60 enemies.

The End? Beat the main story

Heavy-Handed Go through 20 gun drops in one-armed combat in "Captured."

Look Mom, I Can Fly Spend 5 Minutes In Air.

For the Zombie Apocalypse Buy all of the weapons.

Space Cadet Complete Terawatt Forest.

Who Needs Air? Suffocated for 5 continuous minutes without dying.