CheatCodes.com has all the official Contra: Shattered Soldier PS2 cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Wednesday May 22, 2013 for Contra: Shattered Soldier are shown below.
At the title screen, press Up(2), Down(2), L1, R1, L2, R2, L3, R3 on controller two. If you entered the code correctly, you will hear a sound.
At the main menu, on controller one, press Left, Right, Left, Right, Up, Down, Up, Down, Square, Circle, Square, Circle, Select, Start. (Note: If you are going to be doing this for one player, hightlight "OPTIONS", then do the code. If you are going to be doing this for two players, highlight "1 PLAYER", then do the code.)
At the title screen, press Up(2), Down(2), Left ,Right, Left, Right, Circle, Square, Select. Select two-player mode to start with 99 credits.
At the title screen, press Up(2), Down(2), L1, R1, L2, R2, L3, R3 on controller two. If you entered the code correctly, you will hear a sound.
Simply equip your Flame Thrower, and Lock your weapon on an Up-Right angle, and while standing on the ground so that your Flame is hitting under the boss's chin. For the second part, repeat the trick, but angle your gun where your Flame is hitting the monster's nose. You'll hit everything that comes outta his nose, as well as hit his mouth when he opens it. The only thing you then have to do is worry about any worms dropped on the ground from the monster.
Successfully complete the game with a "B" rank to unlock the satellite weapon FMV sequence.
Successfully complete the game with at least a "B" rank to unlock the "Theater" option.
Successfully complete the game with at least a "B" rank to unlock the "Database" option.
Successfully complete the game with an "A" rank to unlock the "Gallery" option.
Successfully complete the game with an "A" rank to unlock the "Return" option.
Defeat the final Boss on the normal difficulty setting to unlock the final Boss battle in training mode.
Successfully complete level 6 with an "A" rank to unlock level 7.
Successfully complete level 6 on the normal difficulty setting to unlock level 6 in training mode.
Successfully complete level 5 with an "A" rank to unlock level 6.
Successfully complete level 5 on the normal difficulty setting to unlock level 5 in training mode.
Successfully complete the game on the normal difficulty setting with at least a ''B'' rank to unlock the ''Theater'' option, ''Database'' option, and level 5 in training mode. Successfully complete the game with an ''A'' rank to view an alternate ending sequence and unlock level 6 in training mode.
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