Rookie
Not unlocked yetClear Mission 1
Soldier
Not unlocked yetClear Mission 2
Warrior
Not unlocked yetClear Mission 3
Master Ninja
Not unlocked yetClear Mission 4
Super Warrior
Not unlocked yetClear Mission 5
Hero
Not unlocked yetClear game (Final Mission)
Weapon Master
Not unlocked yetCollect all weapons
Team Play
Not unlocked yetPlay with all characters
200 Tombs
Not unlocked yetKill 200 soldiers
2000 Tombs
Not unlocked yetKill 2000 soldiers
Grenade Lover
Not unlocked yetThrow 50 grenades
Grenade King
Not unlocked yetThrow 200 grenades
Nurse
Not unlocked yetSave 50 POWs
The King of Recovery
Not unlocked yetSave 200 POWs
Master of Metal Slug 2
Not unlocked yetFinish game without using continue