G.I joe cheats and tips

Unlockable classic uniforms:
Unlock the following classic uniforms by entering the corresponding codes at the title screen:

Shana "Scarlett" O'Hara - RIGHT, UP, DOWN, DOWN, TRIANGLE
Duke - LEFT, UP, SQUARE, UP, RIGHT, TRIANGLE

Bonus mission:
To unlock a bonus mission, beat the game.

Play as Baroness, Destro, and Firefly:
To unlock Baroness, Destro, and Firefly for purchase, beat the bonus mission which is unlocked after completing the game.

Trophies:

Bronze trophies
Arctic Completed - Complete all Arctic missions
Arishikage Attack - Complete any mission using Snake Eyes and Storm Shadow
Baroness - Defeat Baroness
Bevvy o†Heavy - Complete a mission using only Heavy class characters
Classified - Collect all Intel Cards
Code Cracker - Gain access to a Combat Soldier Class Ability door
Combat Rock - Complete a mission using only Combat class characters
Destro - Defeat Destro
Double Barrel Roll - Perform 10 barrel rolls in unison in any level in co-op
File-o-phile - Collect all File Cards
Firefly - Defeat Firefly
Gimme The Keys - Drive every G.I. JOE vehicle in the game
Girls Night Out - Complete any mission using female characters only
Go Commando - Complete a mission using only Commando class characters
Hack ‘n Slash - Finish a level using only melee attacks on ground troops
Half the Battle - Collect 50% of all File Cards
Higher Score - Replay a mission and earn a higher score
It Takes Two - Complete any mission in 2 player co-op
Lost & Found - Collect all G.I. JOE Contacts
Lost Keys - Gain access to a Heavy Class Ability door
Lovers†Quarrel - Complete any mission using Baroness and Duke
Man Up - Complete a Jungle or Tundra mission without going Man Down
Nimble Access - Gain access to a Commando Class Ability door
Side Mission Completist - Complete all Sub-operation Missions
Sloppy Joe - Achieve the worst rank on a level without going Man Down
Strike Lieutenant - Defeat every wave in one Satellite Strike mini-game
The Tables Have Turned - Complete any Arctic, Desert, or Jungle mission using any COBRA character
Triplets - Pick up all three types of Point Multipliers in one mission
Turret Syndrome - Operate the turret in every vehicle in the game
Yo Joe! - Purchase two G.I. JOE contacts

Silver trophies
Acceleration Celebration - Activate the Accelerator Suit three times in any mission
Accomplished Mission - Gain the highest Mission Ranking
Battle Master - Collect and spend all 130 possible Battle Points
Desert Completed - Complete all Desert missions
Hardcore G.I. JOE - Complete every Mission on Hardcore Difficulty
Jungle Completed - Complete all Jungle missions
Launch Money - Launch 50 enemies into the air and kill them.
Storm Shattered - Defeat Storm Shadow in all three secret arenas
Strike Commander - Defeat every wave in all Satellite Strike mini-games

Gold trophies
All G.I. JOE Contacts - Purchase all G.I. JOE contacts
COBRAAAA!!! - Purchase all COBRA characters
M.A.S.S. Destruction - Destroy the M.A.S.S. Device

Platinum trophy
G.I. JOE - G.I. JOE

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