Defeat the Cobra Condor Z-25
Defeat Raptor
Defeat Range Viper
Defeat the Cobra Sea Ray
Defeat the Cobra Buzz Boars
Defeat Metal-Head
Defeat the Cobra Fang II
Defeat the AI Comp
Defeat Overlord
Defeat the A.G.P. (Anti Gravity Pod)
Defeat Roadpig
Defeat Voltar
Defeat the Cobra Bugg
Defeat Golbullus
Defeat Destro
Defeat Cobra Commander
Complete the Amazon [Quest 1]
Complete the Arctic [Quest 1]
Complete the Sewers [Quest 1]
Complete the Black Hills [Quest 1]
Complete the Sahara Desert [Quest 1]
Complete the Cobra H.Q. [Quest 1]
Complete the Amazon [Quest 2]
Complete the Arctic [Quest 2]
Complete the Sewers [Quest 2]
Complete the Black Hills [Quest 2]
Complete the Sahara Desert [Quest 2]
Complete the Cobra H.Q. [Quest 2]
Complete the Amazon [Quest 3]
Complete the Arctic [Quest 3]
Complete the Sewers [Quest 3]
Complete the Black Hills [Quest 3]
Complete the Sahara Desert [Quest 3]
Complete the Cobra H.Q. [Quest 3]
Use the Cobra Buzz Boar
Use the Cobra Interrogator
Use the Cobra Pogo
Fully upgrade Duke's weapon skill
Fully upgrade Blizzard's weapon skill
Fully upgrade Snake Eyes weapon skill
Fully upgrade Capt. Grid Iron's weapon skill
Fully upgrade Rock and Roll's weapon skill
Fully upgrade General Hawk's weapon skill
Complete a mission without losing a team member or time running out
Get more than 250,000 points
Get more than 500,000 points
Get more than 1,000,000 points
Get more than 1,250,000 points
Get more than 1,500,000 points