Successfully complete the mission in advanced mission mode where you use the DICW weapon to unlock that weapon.
GLG40MM pipebomb launcher
Successfully get the highest point total in the mission in advanced mission mode you use the GLG40MM pipebomb launcher to unlock that weapon.
Go to the title screen and hold L + R and press X(2), Y, A, B, Y, A.
Successfully complete the final mission in advanced mission mode to unlock the Guided Missile 2 weapon.
Medal bomb, life bomb, and ammo bomb
Successfully complete the fourth mission in advanced mission mode to unlock the Medal Bomb, Life Bomb, and Ammo Bomb.
Successfully complete the mission in advanced mission mode where you use the PSG-1 weapon to unlock that weapon.
Sound test and movie test options
Successfully complete all mission in novice, intermediate, and advanced mission modes to unlock the "Sound Test" and "Movie Test" options under the options menu.
Successfully complete the mission in advanced mission mode where you use the SPAS12 weapon to unlock that weapon.
Successfully complete the mission in intermediate mission mode where you use the UMP machinegun to unlock that weapon.
To unlock each of the following characters, play through the Novice, Intermediate, and Advanced Mission Modes. Each Mission Mode difficulty has two boss encounter and defeating both bosses in each difficulty setting will enable you to select them:
Commander - Novice Mission
Proofer - Advanced
D.K. - Advanced
Shinobi - Novice Mission
Scarpin - Intermediate
Siba - Intermediate
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