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| 8-Bit Cheat | Earn a medal in the Screw Loose League Challenge |
| All Characters Cloaked Cheat | Earn a medal in the Queen of Harts Challenge |
| Anya | Complete "Time to Split" on Normal difficulty |
| Arthur Aching | Complete "Mansion of Madness" on Easy difficulty |
| Aztec Warrior | Complete the Challenge "Avec Le Brique" with a bronze medal or higher |
| Badass Cyborg | Beat the Cut-Out Shoot-Out Challenge "Balls of Steel" |
| Berseker Splitter | Finish "The Hooded Man" under Easy difficulty or higher |
| Big Hands mode | Complete the Challenge "Cortez Can't Jump" with a bronze medal or higher |
| Big Heads Cheat | Beat Outbreak Hotel with a medal |
| Booty Guard | Beat Zany Zeppelin |
| Braces | Finish 'Old blaggers' wih bronze or higher. |
| Brains | Earn Bronze or higher on the Challenge "Brain Drain" |
| Bricks | Complete 'Dont Loose Your Bottle' challenge |
| Captain Ed Shivers | Earn Bronze or higher on the Amateur Arcade League challenge "Pirate Gold" |
| Cardboard Characters Cheat | Earn a medal in the Hart Attack Challenge |
| Carrion Carcass | Earn Bronze or higher on the Challenge "Rare Or Well Done" |
| Cascade cheat | Earn Bronze, Silver or Gold in Zone Control Arcade League. |
| Changeling | Get all golds or higher in Honorary League |
| Chinese Chef | Finish 'Ninja garden' with bronze or higher |
| Comrade Papadov | Complete the Challenge "Lap it Up" with a bronze medal or higher |
| Corp Hart | Complete "Future Perfect" in Story Mode on Normal difficulty or higher |
| Daisy Dismay | Beat all Story Mode levels in Co-op |
| Deadwina | Beat I Like Dead People |
| Deep Diver | Complete "Oh Shaol-o-Mio" with a bronze medal or higher |
| Dozer | Earn Bronze or better on the Honorary League Arcade challenge "Lip Up Fatty" |
| Dr. Amy | Complete "U Genius, U-Genix" on Easy difficulty |
| Dr. Cortez | Finish "U Genius, U-Genix" under Normal difficulty or higher |
| Dr. Lancet | Complete story level "What Lies Below" on Easy or higher |
| Dr. Peabody | Get all golds or higher in Amateur League |
| Elite Henchman | Complete Challenge "Melon Heist" with a Bronze or Higher |
| Elite Henchwoman | Complete "The Khallos Express" on Story Mode under Normal difficulty or higher |
| Fat Characters | Complete Communing Will Kill You with Bronze, Silver, Gold, or Platinum |
| Fergal Stack | Beat Virtual Brutality |
| Flare Gun | Beat the Scotland level, the 2nd level in Story Mode to unlock the Flare Gun in muliplayer. |
| Flare Gun x2 | Beat the Scotland level, the 2nd level in Story Mode to unlock the Flare Gun x2 in muliplayer. |
| Gaston Boucher | Complete Story level "Mansion of Madness" on Normal or higher |
| Ghengis Kant | Complete story level "Machine Wars" on Normal or higher |
| Gideon Gout | Complete Amateur League with all silvers or golds |
| Gilbert Gastric | Complete Challenge "The Cat’s Pajamas" with a Bronze or Higher |
| Goddard | Beat the challenge "Come Hell or High Water" with Bronze or higher |
| Goliath SD/9 | Complete "Something to Crow About" on Easy difficulty |
| Goliath SD/9 | Beat Story Mode Level 2234: Something to Crow About on Normal difficulty |
| Hans | Finish 'Freak unique' with bronze or higher |
| Henchman Cortez | Complete "The Russian Connection" on Story Mode under Normal Difficulty or higher. |
| Human Gun Sounds | Earn Bronze, Silver or Gold in Cat's Out Of The Bag challenge. |
| Inceptor | Complete "Breaking and Entering" on Easy difficulty |
| INSETICK SD/10 | Complete Elite League with all golds |
| Jack Sprocket | Complete "Breaking And Entering" on Story Mode under Normal difficulty or higher |
| Jacob Crow | Complete "Future Perfect" on Story Mode under Easy difficulty or higher |
| Jacque de la Morte | Beat Vamping In Venice |
| Jared Slim | Complete "The Dead, the Bad and the Silly" with a bronze medal or higher |
| Jed | Earn Gold on all of the Challenges |
| Jim Smith | Beat all Story Mode levels in Co-op |
| Jo-Barf Creepy | Complete "What Lies Below" on Story Mode under Normal difficulty or higher |
| Karma Crow | Complete "Future Perfect" in Story Mode on Hard difficulty |
| Kitten Celeste | Complete "The Khallos Express" on Story Mode under Easy difficulty or higher |
| Koozer Mox | Complete A Pox of Mox with a bronze, silver, or gold.\ |
| Leo Krupps | Complete "Rumble in the Jungle" with a bronze medal or higher |
| Leonid | Complete Communing Will Kill You with Bronze, Silver, Gold, or Platinum |
| Mad Old Crow | Complete "Future Perfect" on Story Mode under Easy difficulty or higher |
| mischief | get bronze or better on challenge "brass monkeys" |
| Monkey Gun | Get a Bronze or above in the Electro Chimp Discomatic challenge. |
| Mordecai Jones | Complete "Machine Wars" on Easy difficulty |
| Mr. Fleshcage | Complete all Challenges with all atleast a Bronze Medal. |
| Mr. Socky | Finish 'Sock it to them' with bronze or higher |
| mr. underwood | get bronze or better on challenge "glimpse of stocking" |
| Neophyte Constance | Complete "The Freak Unique" with atleast a Bronze Medal. |
| Neophyte Lucian | Complete "Zone Control" with a bronze medal or higher |
| Nobby Peters | Complete "Toy Soldiers" with a bronze medal or higher |
| Nurse Sputum | Beat Missle Bunker |
| Old Film Cheat | Beat I Like Dead People with a medal |
| Oleg | Beat TSUG: Timesplitters Underground |
| Paintball Cheat | Earn a medal on Challenge "Absolutely Potty" |
| Play As Anya | Complete The 1st Mission |
| Play as Jungle Queen | Complete Scotland the Brave On Easy or better |
| Play As The General | Complete The 1st Mission |
| Play as Viola | Beat the challenge Hart Attack with at least bronze. |
| Prison Officer | Complete "Screw Loose" with atleast a Bronze Medal. |
| Prometheus SK/8 | Beat Virtual Brutality |
| Pulov Yuran | Beat Plainly Off His Rocker |
| Robot Louis Stevenson | Complete "You Take The High Road" on Story Mode under Easy difficulty or higher |
| Rotating Heads Cheat | Beat Brain Drain with a medal |
| Sapper Johnson | Complete the Challenge "Sammy Hammy Namby Pamby" with a bronze medal or higher |
| Sewer Zombie | Complete all Challenges with atleast all Silver Medals. |
| Sister Faith | Get all silver or higher on the Elite League |
| Slow Motion Deaths | Finish Rockets 101 with a Bronze medal or higher |
| Small Heads Cheat | Earn a medal in the A Pox of Mox League Challenge |
| Snowman | Complete "Dam Cold Out Here" with a bronze medal or higher |
| Spinning Heads | Complete Dehead the undead with either a bronze, a silver, or a gold |
| Stumpy | Complete "Front Loaded" with a bronze medal or higher |
| Swinging Tipper | Complete "The Russian Connection" on Story Mode under Easy difficulty or higher |
| The Master | Complete Divine Immolation with Bronze, Silver, Gold, or Platinum |
| Time Assassin | Complete "The Hooded Man" in Story Mode on Normal difficulty or higher |
| Time Assassin Cortez | Complete "You Take The High Road" on Story Mode under Normal Difficulty or higher. |
| Tin-Legs Tommy | Complete the Challenge "Boxing Clever" with a bronze medal or higher |
| Tommy Jenkins | Get all bronze or higher on the Elite League |
| Venus | Earn Bronze or higher on the Challenge "Lap It Up" |
| Venus | Complete "Bag Slag" with a bronze medal or higher |
| Victorian Crow | Complete "Future Perfect" in Story Mode on Normal difficulty or higher |
| Vlad the Installer | Complete "Big Game Hunt" with a bronze medal or higher |
| Warrant Officer Cain | Complete "Scotland the Brave" on Normal difficulty |
| Warrant Officer Keely | Beat the whole Amateur League with Silver or higher |
