Unlockable: Leon
You must complete Zack's Story Mode.

Unlockable: Ein
You must complete Hitomi's Story Mode.

Unlockable: Helena
You must complete the Story Modes of all initially available characters.

Unlockable: SPARTAN-458
You must complete Helena's Story Mode.

Unlockable: Tengu
You must complete the Time Attach Modes of all the other 21 characters.

Unlockable: Biolab Core
Completing Story Mode once will unlock the Biolab core Stage.

Unlockable: Nassau
The Nassau Station stage will become available when the SPARTAN-458 character is unlocked.

Unlockable: Tatami
Complete the story mode for all 17 characters. Unlock all hidden costumes for all 21 costumes. Unlock the system voice for all 22 characters. Note this stage is already available in Sparring mode -- this unlocks the stage for other modes.

Unlockable: Movie Theatre Mode
Beat story mode once.

Unlockable: System Voices
Complete a character's Exercise session in Sparring Mode. You can then go choose the voice heard during matches in the Settings menu.

Unlockable: Alpha-152's System Voice
Unlock the System voices for all 21 characters (Ein doesn't have one).

Unlockable: CMP-150
Pick itup in Sewer Retrieval, and finish the level with it.

Unlockable: Combat Shield
Pick it up in Trinity Infiltraiton and finish the level with it.

Unlockable: DEF-12 Shotgun
Pick itup in Nightclub Stakeout, and finish the level with it.

Hint: Zhang Li Boss Tip
An easy sure-fire way to whack this guy is to take a DEF-12 shotgun and any other weapon that is fairly accurate at long distances (any assault rifle or sniper rifle). Zhang Li will dance around the arena and rain on Jo's pretty young butt with death plasma. Evade the shots using Jo's dodge and when you have a clear shot, feel free to shoot back but only if you are sure of a hit.

Damaging the boss enough prompts a shift in attack pattern, and Zhang will hurl obstacles that are diffult to dodge due to the size involved. Simply go to the far end of the platform when Zhang is lifting the object and run (normally) to the other end when the object is thrown.

Continue the attack on Zhang and this prompts him to jump down to Jo's level and attack with the ViBlade. To counter this, dodge and Zhang will falter, dropping the weapon. Normally, you'd take the sword and hack, but it is better to shoot him full on with a double blast from the DEF-12. Zhang will begin his regeneration sequence once he jump back up. Shoot him with the long range weapon to stop his recovery process and Zhang falls back into the ring. Now take the ViBlade and start the hacking and it should be able to finish him off (or at least do serious damage) before he repeats his pattern.

Hint: HAWK Shield On Vehicle
Jo must have the Hawk weapon unlocked for those vehicle stages. Include it in her kit and head for the vehicle. Stand next to the vehicle and throw the HAWK weapon as far out as possible. Before it returns, board the vehicle and when the HAWK returns to Jo's atavism, pressing RB will activate the ballistic shield while Jo is riding.

Glitch: Friendly Fire Off (Ranked Matches)
When creating a ranked game select deathmatch "dark-ops". When the scenerio is highlighted hold LEFT on the D-Pad while pressing GREEN. Cycle through until Eradication is showing again. Friendly fire should now be off. (Unverified)

Unlockable: Get the Helicopter
You must get a 1,000,000 point combo.

Unlockable: Greater Snow God
You must get a gold medal on ever challenge

Unlockable: King of the Mountain Lab
You must impress the required amount of bystanders in DC.

Unlockable: Laax Stock & Barrel
You must impress the required amount of bystanders in Laax.

Unlockable: Lesser Snow God
You must get a medal on every challenge.

Unlockable: Northstar Nirvana
You must impress the required amount of bystanders in Northstar.

Unlockable: Rescued Weiner Boy
You must complete Act 3 of the story.

Unlockable: Snowbird Bound
You must complete Act 1 of the story.

Unlockable: Snowbird Dawg
You must impress the required amount of bystanders in Snowbird.

Unlockable: Vamonos a South America
Complete Act 2 of the story.

Unlockable: Hang Glider slide
You must finish the story mode.

Unlockable: Jason Ellis
Input sirius-DJ on the cheat menu to shred as Jason Ellis.

Unlockable: Mat Hofman
Input the_condor on the cheat menu.

Unlockable: Bails N' Burns 1 of 2
Clear Classic mode.

Unlockable: Bails N' Burns 2 of 2
Achieve 100% completed in Story Mode.

Unlockable: Dev-Team Skates
Achieve 100% completed in Classic Mode.

Unlockable: American Wasteland
Clear Story Mode.

Hint: Marseille Secrets
Go to the middle of the grassy area and locate the smallest tree there. A light post stands near it. Make your skater graze the tree and it will fall onto the wall and reveal a secret area. (Unverified).

Hint: Beverly Hills Record - 10 points
You must achieve a High Score in Beverly Hills.

Hint: Chicago Record - 10 points
You must achieve a High Score in Chicago.

Hint: Casino Record - 10 points
You must achieve a High Score in Casino.

Easter Egg: Goatse
Ever notice that in every T.H.U.G game there were people messing with goats? In Wasteland you'll find the goat scene in Hollywood. Go to where the skate shop is in Hollywood. Skate up the QP to the left and into the pool. Then grind or grab onto the third rail, going left. Jump onto a little corner and bash the crack wall with your board. You will find the goat on the bed and a oil rig worker.

Hint: Win a Custom League (150)
You must achieve custom league in tournament mode.

Hint: Win World Masters (200)
You must achieve the first tournament (World Masters) in the Road To FIFA World Cup mode

On the main menu follow with: LEFT, LEFT, LEFT, RIGHT, LEFT, RIGHT, YELLOW, YELLOW for unlimited ammo. (Unverified)

Hint: Completed Training - 50 points
You must achieve the Basic Training Level.

Hint: Veteran of Crossing the Rhine - 60 points
You must achieve Crossing the Rhine levels on Veteran

Hint: Veteran of D-Day - 60 points
You must achieve D-Day levels on Veteran.

Unlockable: Free Upgrades
At the title screen, enter UP, UP, DOWN, DOWN, LEFT, RIGHT, UP, DOWN.

Unlockable: Porsche Cayman
At the title screen, enter L, R, R, R, RIGHT, LEFT, RIGHT, DOWN.

Unlockable: Burger King challenge.
At the title screen, enter UP, DOWN, UP, DOWN, LEFT, RIGHT, LEFT.

Unlockable: Aston Martin DB9
Defeat Blacklist Boss #7

Hints:

Hint: Defeat Ho Seun "Sonny" - 10 pts
Beat Blacklist 15.

Hint: Defeat Vince Kilic "Taz" - 10 pts.
Beat the Blacklist 15.

Hint: Defeat Victor Vasquez "Vic" - 10 pts.
Beat the Blacklist 15.

Load up ... UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, RED, GREEN
Restore life ... RED, GREEN, RED, GREEN, UP, UP, DOWN, BLUE
Restock ammo ... RED, GREEN, BLUE, YELLOW, LEFT, RIGHT, LEFT
Invulnerability ... DOWN, UP, DOWN, DOWN, UP, RIGHT, LEFT, RIGHT, YELLOW, BLUE, BLUE, GREEN

Hint: Fast Weapon Achievement
After you finish with the last tower (the Data Processing Security tower) go to lift just right before the level exit and save the game. Keep this save game alive so you can farm this file.

Pick a weapon in your inventory and exit the level. Upon loading the next map, do not change your weapon and proceed to kill the big monkey strogg enemy before you approach the tram and exit this map.

Simply reload the save game from the Data Processing Security tower and repeat the tram map with each weapon and you'll bag all the achievements quickly.

Cheat: 100% Life
Press start during the game and while on the pause menu hold the back button, Left Trigger, and Right trigger and enter the password LB, LB, RB, X, RB, Y.

Cheat: Unlimited Ammo
Press start during the game and while on the pause menu hold the back button, Left Trigger, and Right trigger and enter the password RB, RB, LB, X, LB, Y.

Cheat: Team Invincible
Press start during the game and while on the pause menu hold the back button, Left Trigger, and Right trigger and enter the password X, X, Y, RB, Y, LB.

Cheat: Scott Mitchell Invincible
Press start during the game and while on the pause menu hold the back button, Left Trigger, and Right trigger and enter the password Y, Y, X, RB, X, LB.

Unlockable: Apache Shirt
Finish the Hunting Missions.

Unlockable: Silver Spurs
Finish all Pony Express Missions.

Unlockable: Dual Peacemakers
Beat Hoodoo Brown.

Unlockable: Cavalry Sword
Beat Reed.

Unlockable: 69 Ferguson Rifle
Beat Hollister.

Hint: A Hole In The Wall
If you take a barrel of TNT from the Badlands mine and put it on the north end of the old abandoned house's chimney. The explosion will open up a hole in the ground with unlimited ammunition.
To get there, get out of Dodge City. Make your way to the Badlands (use your map for directions) and head into the field that has several horses and buffalo. The house and the mine with the TNT will be right next to you.

Hint: A Hole In The Wall 2
In Dodge City go over the lower part of the bridge and follow the path on the other side to the beach cave. Inside is some ammo, money, and life pick-up which often respawn when you leave and revisit the area.

Hint: Hunting Game
If you happen to miss a mark when hunting game, you can always depart for other areas and force the game to respawn the target upon your return. Try not to miss the next time around.

Hint: Quarry Respawn
If you scared off the quarry in the Hunt side-missions, just remember where it was and go to the nearest trader. After you talk to him and return to where the animal disappeared, it will be there again.