Finish a level using only melee attacks on ground troops (P1 only)
Continue playing to unlock this secret achievement.
Achieve the worst rank on a level without going Man Down (P1 only)
Perform 10 barrel rolls in unison in any level in co-op (P1 only)
Complete any mission in 2 player co-op (P1 only)
Complete a mission using only Combat class characters (P1 only)
Purchase all G.I. JOE contacts (P1 only)
Complete all Jungle missions (P1 only)
Complete every Mission on Hardcore Difficulty (P1 only)
Collect all G.I. JOE Contacts (P1 only)
Complete any mission using female characters only (P1 only)
Complete a mission using only Commando class characters (P1 only)
Replay a mission and earn a higher score (P1 only)
Destroy the M.A.S.S. Device (P1 only)
Operate the turret in every vehicle in the game (P1 only)
Defeat Destro (P1 only)
Defeat every wave in all Satellite Strike mini-games (P1 only)
Drive every G.I. JOE vehicle in the game (P1 only)
Complete all Desert missions (P1 only)
Complete a mission using only Heavy class characters (P1 only)
Defeat Firefly (P1 only)
Collect 50% of all File Cards (P1 only)
Defeat Storm Shadow in all three secret arenas (P1 only)
Complete a Jungle or Tundra mission without going Man Down (P1 only)
Complete all Arctic missions (P1 only)
Defeat Baroness (P1 only)
Gain access to a Commando Class Ability door (P1 only)
Purchase two G.I. JOE contacts (P1 only)
Defeat every wave in one Satellite Strike mini-game (P1 only)
Gain access to a Combat Soldier Class Ability door (P1 only)
Gain access to a Heavy Class Ability door (P1 only)
Gain the highest Mission Ranking (P1 only)
Activate the Accelerator Suit three times in any mission (P1 only)
Pick up all three types of Point Multipliers in one mission (P1 only)
Collect and spend all 130 possible Battle Points (P1 only)
Complete mission with higher than 50% Dual Targeting kills (P1 only)
Collect all File Cards (P1 only)
Collect all Intel Cards (P1 only)
Launch 50 enemies into the air and kill them (P1 only)