Go to the options menu and select passwords.
| Password: | Result: |
| MANDARIN | Achilles Head Mode |
| GARIBALDI | All Replay Items |
| PUFFER | Always Sniper mode |
| TANG | Bullet Shield mode |
| TRIGGER | Invisible Soldiers mode |
| SPINEFOOT | Makes Everyone's Arms HUGE |
| SEAHORSE | Men With Hats |
| HOGFISH | Perfectionist mode |
| DAMSEL | Rubber Grenades mode |
| TILEFISH | Silver Bullet Mode |
| GOBY | Unlimitied Ammuntion |
| BUTTERFLY | Unlocks All Missions |
This trick requires the trench tool from the Search For Yamashita's Gold mission. As you are making your way up through the ship you will see a soldier that has been sprayed in the face with steam from an exploded pipe. Approach the soldier and press X. The message ''Entrenchment Tool Used'' will appear. This will unlock the ''Unlimited Ammo'' cheat in the bonus menu.
MedalsGet 3 Gold Stars on each level to receive a medal.
| Unlockable: | How to Unlock: |
| American Campaign | Mission 5 - 75% Accuracy, Less Than 50 Hits, Complete 2 Bonus Objectives (Storm Pack Howitzer - Save Lt. Harrison) |
| American Defense Service | Mission 1 - Complete 2 Bonus Objectives (Assist Engineer - Save Crewman) |
| Asiatic Pacific Campaign | Mission 7 - 85% Accuracy, Less Than 50 Hits, Complete 2 Bonus Objectives (Destroy Radio Equipment - Destroy Sake Supply) |
| Bronze Star | Mission 8 - 85% Accuracy, Less Than 90 Hits, Complete 2 Bonus Objectives (Eliminate 10 Enemies at Blockade - Disable Barge Dock) |
| Guadalcanal Patch | Mission 4 - 75% Accuracy, Less than 50 Hits, Complete 2 Bonus Objectives (Collect 5 Documents - Disable Generator) |
| Marine Corps Expeditionary | Mission 6 - 75% Accuracy, Less than 51 Hits, Complete 2 Bonus Objectives (Rescue 3 POWs - Find 3 Additional Evidence) |
| Navy Cross | Receive a medal on each mission |
| Navy Distinguished Service | Mission 2 - Complete 2 Bonus Objectives (Shoot Down 20 Planes - Shoot Down 75 Planes) |
| Philippine Defense | Mission 3 - 75% Accuracy, Less Than 100 Hits, Complete 2 Bonus Objectives (Find Shima's Photograph - Find Golden Buddha) |
| Silver Star | Mission 9 - 50% Accuracy, Less Than 150 Hits, Complete 2 Bonus Objectives (Send False Radio Transmission - Find 3 Imperial Orders) |
Location of skins:
| Unlockable: | How to Unlock: |
| MISSION 1: Day of Imfany : NAVY ENGENEER | The first skin can be found in the barber shop, right across the bathroom. |
| MISSION 3: Fall of the Philippines: GUNNIE LAUTON | You'll find a skin on the second floor of the building with the locked iron gate to the town center and the machine gun on the roof. |
| MISSION 4: Midnight Attack on Guadalcanal: GUAD NATIVE | You can find a skin in that huge last builing befor the ammo depot. |
| MISSION 5: Pistol Pete Showdown: Lt HARRISON | You'll find the skin in the POW camp. It's in the biggest hut. |
| MISSION 6: Singapore Sling: COLONEL KANDLER | This one can be found in the room after the kitchen in the hotel. |
| MISSION 7: In search of Yamashita's Gold: FLYING TIGER PILOT | In the prison area. After it's one of the side rooms on your right. You'll need the skeleton key to access this room. |
| MISSION 8: A Bridge on the River Kwai: CHINDIT | Once you have met up with the Chindits, you'll find it in the first cave. |
| MISSION 9: Supercarries Sabotage: COMMANDER SHIMA | This last skin can be found be in the strategy room. (After being held captive) |
On the fall of the phillipenes level on two player co-operative mode if you go to the part where you first get on a mounted machinegun just before you go into the stadium if one of you gos on the gun and the otherstands behind then you can see a scary face on the back of the gunners head but only if you go up close.to find the golden buddah on the same level then all you have to do iswhen you come out of the sewers from tyhe satdium you will be in a collapsed building on your left there will be a jap ,kill him and the carry on untill you get to the part (still inside the building)where there is a hole at the bottom of the wall in front of you dont go though yet .on your right there is a box smash it with your gun,it is like a russian doll,the boxes will get smaller three times until the final time when a big golden buddah pops out of a box that is way to big to fit in the box,walk into it and you will have completed a bonus objective.
Submitted By: mike and jamesHow to find the Trench toolThe trench tool digs up dirt for in game secrets. To find the tool you must get to the level named Search of yamashitakas gold and find the lotus flower on a statue inside the palace. Walk up to the front of it and you'll pick it up. After you fall down the hole, go down to the end of the hall into a room with a gold statue. There is a pedsetal. Press X on it and it should say, "YOU HAVE REACHED ENLIGHTENMENT." Then a door will appear to the right and in there is a hammer-like tool.
Immortality(you need the entrenching tool in order for this to work.) On the Supercarrier Sabotage level keep opening doors until you find a locker room with soldiers in it. Kill them and walk toward the dark locker. Press X on the locker and you should have unlocked the bonus option ''Immortality''
Dissapearing SoldierWhen doing the 4th mission, Midnight attack on Guadacanal, when the second soldier leaves you and and the other character to ''cover you'' from behind, go in front of him and push him through the level by walking into him. You will have to angle some pushes too. After pushing him a bit, he will vanish and never be seen again, even if you go back to the spot he was originally at.
Conserving ammunitionThere is an easier way to break open boxes if you are short on ammunition. Press Attack and it will break in one hit. If you had shot it, it may have required two or three shots to break open. Note: Break open every box you find. They may contain ammunition, health, or items usable for bonus objectives.
Multi-player: Calumpit Chaos: Secret machine gunGo in the building all the way at the back of the area. Go up the stairs so that you are on the second level. There are two spaces in the wall. One of them has a table turned sideways. Stand in the middle of the two spaces so that you are facing the wall and move back a little bit. If you press Action, it brings you to an invisible machine gun.
Super Carrier Sabotage: CerealGet to the room with a chef who throws knives at you. Kill him, then go into the space where all the food is kept. Look for brightly colored boxes on the shelves. The boxes are red and yellow. If you look closely, you can see that the boxes read "Cereal" in English.
Singapore Sling: Achilles' Head cheatNote: This trick requires the entrenching tool from the Search For Yamashita's Gold mission. In the small staircase room that leads to a small indoor platform with a broken window and a catwalk leading to the industrial building (where the first POW is found), there is a silver air duct vent on the floor by the foot of the stairs. Press Action by it and the duct will disappear, unlocking the cheat.
Search For Yamashita's Gold: Entrenching toolDuring the mission, you will find a Buddha statue sitting Indian-style holding a lotus flower. Approach it and you will take it. Near the end of the mission, after you save the pilot, go to the end of the hall and place the lotus in the fountain in front of the Buddha lying down. A message stating "You have achieved enlightenment" will appear. The fountain will lower and a door will open to your right, Indiana Jones style with a great earthquake. Take the shovel inside and a message stating "You have the entrenching tool" will appear. You can now load and switch your weapons much faster for the remainder of the game.
Pistol Pete Showdown: Hidden pathAfter you save the squad in the Japanese camp, go into the area filled with trees which has the normal path going to the howitzer. Instead of turning right as usual, go straight up to the top of the area and look for a hidden path. Press Action near the hidden path, and the machete will clear it. Go up the path while clearing more brush with the machete. The secret path will exit just under the howitzer. Note: The howitzer cannot bombard you while you are on this path.
Midnight Raid On Guadalcanal: Film canisterThe second film canister is difficult to find. This is because it is quite literally over your head. As you proceed across the island you will reach several clearings with barracks buildings, HQs, supply sheds, etc. When you get to a clearing with two buildings, a truck, and a crane, run up to the crane's door and jump. Keep pressing Jump and you will start to rise up on the crane until you reach the roof. Be careful not to jump off the other side. Once you are on top, walk up the crane's arm to reach the film canister. Also, below the crane is a truck with a medical kit. The fall will take some of your health away but the medical kit easily has more than you will lose.
Day Of Infamy: Navy Crewman multi-player skinNote: This cheat requires the skeleton key. Press X at the middle barber's chair at the barbershop to unlock the Naval Crewman's multi-player skin. A message will appear, stating "Used skeleton key, unlocked Navy Crewman Multi-player Skin" or something similar.
Day Of Infamy: Unlimited ammo cheatNote: This trick requires the entrenching tool from the Search For Yamashita's Gold mission. As you are making your way up through the ship you will see a soldier that has been sprayed in the face with steam from an exploded pipe. Approach the soldier and press X. The message "Entrenchment Tool Used" will appear. This will unlock the "Unlimited Ammo" cheat in the bonus menu.
Bridge On The River Kwai: Hidden pathTurn around and go backwards from the starting point to find a hidden path which will lead to some Japanese soldiers and a ledge that the first bridge (on the normal path), crosses. If you look down, you will see some soldiers down at the river (on a dock) that you can kill. There are some vines at the ledge that you can swing on to get access to a tunnel that contains more soldiers and a Japanese machine gun. The tunnel ends at the ledge that is directly after the first bridge (on the normal path). Note: Before swinging on the vines, search the area for a nearby film canister.