Borderlands Cheats

Rootinest, Tootinest, Shootinest(10): Kill 5 Rakk in under 10 seconds
Pandora-dog Millionaire(50): Earn $1,000,000
Fence(25): Sell 50 guns to a shop
Can't We Get BEYOND Thunderdome?(25): Win an arena match
Duel-icious(15): Win a duel against another player
Group LF Healer(25): Rescue a groupmate from death in a co-op game
There's No "I" In "Team"(30): Complete 15 missions in co-op
And They'll Tell Two Friends(10): Play in a co-op game with either an employee of Gearbox or someone who has this achievement
Weapon Aficionado(20): Reach proficiency level 10 with any weapon type
Duelinator(35): Win a duel without taking damage
Facemelter(25): Kill 25 enemies with corrosive weapons
1.21 Gigawatts(25): Kill 25 enemies with shock weapons
Pyro(25): Kill 25 enemies with incendiary weapons
Master Exploder(15): Kill 25 enemies with explosive weapons
There are some who call me...Tim(25): Equip a class mod for your character
Fully Loaded(10): Rescue enough Claptraps to earn 42 inventory slots
Truly Outrageous(15): Kill an enemy with the Siren's action skill
Careful, He Bites(15): Kill 15 enemies with the Hunter's action skill
Reckless Abandon(15): Kill 15 enemies with the Berserker's action skill
Down in Front!(15): Kill 15 enemies with the Soldier's action skill
Secret Achievement(30): Continue playing to unlock this secret achievement
Secret Achievement(10): Continue playing to unlock this secret achievement
Secret Achievement(20): Continue playing to unlock this secret achievement
Secret Achievement(30): Continue playing to unlock this secret achievement
Secret Achievement(40): Continue playing to unlock this secret achievement
Secret Achievement(50): Continue playing to unlock this secret achievement
Secret Achievement(35): Continue playing to unlock this secret achievement
Secret Achievement(15): Continue playing to unlock this secret achievement

The Zombie Island of Dr. Ned Achievements
Complete each achievement to receive the allotted gamerscore.

Braaaaaaaaaaaaains! (25): Complete the "Braaaaaaaaaaaaains!" mission
House of the Ned (25): Complete the "House of the Ned" mission
Jakobs Fodder (25): Complete the "Jakobs Fodder" mission
Ned's Undead, Baby (49): Killed Ned. Again.
Night of the Living Ned (1): Killed Ned...sort of

Mad Moxxi's Underdome Riot Achievements
Complete each achievement to receive the specified gamerscore.

Big Tournament (40G): Reach the end of each of the 3 larger challenges with one character.
Hell-Burbia (25G): Reach the end of the larger challenge in the Hell-Burbia colliseum.
Small Tournament (10G): Complete the Prove Yourself Mission
The Angellic Ruins (25G): Reach the end of the larger challenge in The Angellic Ruins colliseum.
The Gully (25G): Reach the end of the larger challenge in The Gully colliseum.

The Secret Armory of General Knoxx DLC Achievements
Complete each achievement to receive the allotted gamerscore.

Athena, Out(25): Rescue Athena
Completionist(25): Complete all missions in Secret Armory
Depot Demolition(25): Destroy the Lance Depot
Ding! Overleveled to 11 (40): Reach Level 61
Ding! Overleveled(15): Reach Level 51
Making a Monster(10): Build the New Car: Monster
Sneaky Little Buggers(25): Kill each of the loot midgets
Speed Kills(25): Destroy a Lancer While in a Racer
Vincible(50): Kill Crawmerax the Invincible

Claptrap's New Robot Revolution Achievements
Bobble-Trap (10): Collect 15 claptrap bobbleheads
It's so realistic! (10): Collect 5 3D glasses
Muerte la robo-lución (70): Kill the INAC
The Collector (50): Complete a crazy request for Tannis
The Lubricator (10): Find 25 oil cans
Tourist (10): Find all 6 Claptrap Statues
What a party! (30): Collect 3 panties, 5 fish in a bag, and 15 pizzas

New Game +
Complete the game one time to unlock New Game +. All the enemies are super powerful on this playthrough.

Berserker Speed Glitch
Once you hit level 5 and get the Berserk action skill, you can exploit a glitch that will allow you to constantly be able to move as fast as you would if you were going berserk while still being able to use all your weapons normally. 1. Activate the Berserk skill. 2. While Brick is doing the beginning hand animation he does at the beginning of Berserk, quickly hit the Back button to get to your inventory. This will cancel the Berserk prematurely. You must hit the back button before the beginning hand animation ends or it won't have any effect at all besides just canceling out the action skill. 3. If you did it right and you exit out of the inventory, you will walk at running speed and run even faster! To return to normal, just activate the Berserk when it recharges again and wait until the hand animation is done. Once it is, just wait or exit out of Berserk by going to the inventory and it will be set back to normal.