Corporal Hart
Finish story mode within the normal or hard difficulty setting.

Dr. Peabody
Finish the Amateur League with golds.

Daisy Dismay
Finish co-op story mode completely.

Human sounds
Finish the Cats Out Of The Bag challenge with bronze, silver, or gold.

Carrion Carcass
Obtain a bronze or better on the Rare -Or Well Done challenge on Behead The Undead.

Zombie Monkey
Finish the Behind The Undead challenge completely with bronze, silver, or gold.

Tin-Legs Tommy
Finish co-op story mode completely.

Hints & Tips

Mansion of Madness: Avoiding zombies
When your playing this level, you will come across some zombies. To avoid them, duck. They will keep trying to attack you, but you will not be hit. Note: This will not work with zombies with weapons.

Mansion of Madness: Beating Princess
Remain in the corners of the courtyard and Princess cannot grab you. When she looks up and smoke starts to come out of her mouth, run in circles around the hole to avoid the fire. When she is done, return to the corner. Note: Shoot her in the head at all times.

To beat The Princess, side-step in one direction while your aiming up and turning. The closer that Cortez is to the fountain, the better the chance to avoid being swiped. When the Boss is ready to die, step back and fire the final shots to avoid the last death blow.

Mansion Of Madness: Beating Carrion Carcasses
When you see a Carrion Carcass instead of shooting it, hit it with a bat twice and it will be dead.

Entering And Hacking
The tank robots can do plenty of damage if they fire at you. Throw a Time Disrupter grenade and then fill them with lead using the SBP500 and they will die fast.

Mansion Of Madness: Make Jo-Beth Casey attack you
If you happen to shoot Jo-Beth Casey enough in the "Mansion of Madness" story level she will start to come after you, and even kill you if you do it too often. The best way to get her to attack you is to catch her on fire after you battle with the Deerhaunter. While she is on fire, shoot her with your shotgun. She will always shoot you after you do that. From then on she will shoot you every time you set her on fire. Note: You cannot do this until Jo-Beth Casey has the shotgun. As soon as you run far enough away from where she has to run to keep up with you, she will stop shooting. If you stand there she will shoot you until you are dead. In rare cases she will never stop shooting you.

Mansion Of Madness: Make zombies get up
To make a zombie that is on the ground get up so you can kill it set it on fire. It will scream and get up. You can now kill it.

Mansion Of Madness: Health pack locations
There are a total of ten health packs in the "Mansion of Madness" story level. Seven of the health packs are hidden. Every health pack in this level restore your health meter to full.

At the first checkpoint where you get the bat after you burn the little black ghosts, there is an armoire to your left and a low dresser on your right. Now press Action next to them to open them. There will be a health pack inside.

After you beat the Deerhaunter, go up the stairs and into the door on your right. This wiil take you to a hallway. Go to the second room on the right where a scientist says, "It's not real... It's a bad dream... It's not real... It's not real... Oh please make it go away..." On your right is a low dresser, and in the left corner there is an armoire. Open them to find a health pack in each.

In the kitchen where you battle the Carrion Carcasses after you fight Princess, there is a table to the left. There is a health pack sitting on top of it.

After you fight the zombies in the library and go through the room with the scientist sitting behind the couch saying rhymes, there is a long hall that has turns. After the turn, go to the final room on the right where the zombie breaks out of the armoire. In the left corner of the room is a low dresser next to the bed. Open it to find a health pack inside.

In the room were you first see the little girl's ghost and she turns half the room on fire, turn left. There will be a low dresser a few feet from the fireplace. Open it to find a health pack inside. Unless you are low on health, do not use this until you save the scientist from the giant worms.

In the room with the giant table after you grab the shotgun, turn left. There will be two low dressers against the wall with the door you used to go through. Go to the one farthest from the door you came through and open it. There is a health pack inside. Unless you are low on health, save this for use when you fight the Deerhaunter.

After you see the little girl's ghost in the attic and the zombie breaks though the wall, there is a room and a hall. Go down the hall and jump into the lower part of the attic. There is a scientist that is dying close to the stairs. To his right is a health pack.

After you have fallen through the floor and walk down the stairs, a scientist will talk to you about his "great leader". If you go to the left and open a white door, there is an open closet to the right with a revolver, a shotgun, and a health pack.

The Russian Connection: Easily kill guards in the sniping portion
When your in story mode, if you throw a grenade with maximum power you can get it in the are where the guards are shooting at Harry Tipper. Note: The best time to do this is when the guards are coming out in the second half of the sniping part. Now throw a grenade in the middle of all of them as they come out, and a barrel will explode and kill all of them.

Scotland The Brave: Easy kills
When your in story mode, at the checkpoint immediately after you beat the gunboat, throw a grenade in a window on the roof of the building where you grabbed the truck. This will kill most of the guards inside.

Scotland The Brave: Extra TNT
When your in story mode, reach the door you need to destroy with TNT. Wait breifly after you have used your TNT. More will appear and you can save it for when you battle the tank.

Scotland The Brave: Skip guard fight
When your in story mode, in the room where you see the meeting being held, instead of fighting the guards here, run straight to the door in the room. An intermission sequence will start, and the enemies will go away. This will save ammunition and health.

Scotland The Brave: Get a flare gun
When you first start the Scotland The Brave story mission, turn left and run to the boat. There will be a flare gun there.

Scotland The Brave: Get a Double Kruger
When your in story mode, remain close to the water at the beginning before you reach the castle with the ship. As you near the castle, someone with Double Krugers will run out of one of the buildings. Kill him and grab his gun.

Scotland The Brave: Armor and other items
At the beginning of this level in story mode, there are a few destroyed buildings as you run towards the castle. Now go inside them. You will find things like armor and grenades.

Subway: Trains
Reachthe control room or just be a member on the red team in a team match. The Red members start near or in the control room. You will see three switches. Now press X on the middle one. You will see a train come out from each opening. If you are on either track and the train does hit you, you will die. However, it will not count as a kill for the person who activated the trains.

Zeppelin: Bomb drop
At the center room of the Zeppelin multi-player map is a hatch that will opens It will be easy to figure out with the power-ups. The platform that holds the Max Damage power-up is the detachable platform. Now fire at the platform and the hatch below it will open. This will cause the platform to fall out of the zeppelin, to the unlucky player(s)' death.

What Lies Below: Beating the Boss
Simpl use the Ghost Gun and position yourself right. Locate a rock that shields Cortez's legs while it allows him to fire back. The fire attack from the Boss must drop to the floor before you move forward. The rock will protect you from most of the fire damage. Then use a melee attack to kill the bats and allow the Ghost Gun to damage the tank.

What Lies Below: Beating Princess
When your fighting the giant eye monster, run right up against the well and shoot. You should not be hit.

The last Boss, called Princess, can be defeated with the Harpoon weapon. Just wait for the beast to open its mouth and fire, aiming for the metal container inside. Three harpoon shots on target and Princess will be dead.

Big Game Hunt league
Simply use the "Zeep" to kill the Deerhaunters.

Pox Of Mox league
When you start, reach the zone closest to you, then follow the zones outside. Once you have control of the outside zone, kill every Moxe then go to the door opposite of the outside zone. When your inside, follow the corridor to the first zone inside and remain there. All the Moxes will come around the corner in front of that zone in a line and you can kill them easily. Do not let any get past that point and you can keep the first four zones under control easily. Note: If done right you can finish the level in 2:45.

Screw Loose league
Just kill the Monkeys as soon as possible and do not let them get in a group. As soon as they are in a group, when you kill one they will automatically get the coin because it will fall on them.

Don't Lose Your Bottle
Simply use the Single LX-18 with the scope and you will have better accuracy and will save ammunition and time.

Absolutely Potty challenge: Destroy pots while reloading
While your reloading, push the pots into each other and they will break most of the time.

Behead The Undead challenge
In these challenges you are fighting the zombies. Keep on moving and you will no problems. Make sure to remain out of corners and get used to your surroundings so that you can move and not become trapped between the zombies. It is possible to achieve at least 75,000 points on every one of the three by using this method.

Come Hell Or High Water challenge: Extra points
Simply shoot the targets in the lower body for 100 points. If you shoot close enough you get will 75 points. The head is only worth 5 points. The alien's chest is worth 100 points.

Glimpse Of Stocking challenge
Instead of shooting the zombies, pistol-whip them with your double Kruger. This will save ammunition and usuallly kill them in one shot.

Train: Drive cat
When you are trapped in the room and the green gas floats in, use your glove to tip the statue back. When your  in that room, you will find the cat.

Train: Slot machine
When your walking into the room where Cortez or Tipper says "Did I miss the party?", there is a slot machine. Walk over to it and press X to play. Now press the buttons under "Hold" to hold that slot.

Venice: Get to hidden places
While your in Venice there are secret areas with the number six weapon and other items. To reach these places, wait by the water for a boat to go by. When the boat passes by, walk onto it. There are two spots that if you walk into them they are not reachable from the rest of the level. Depending on where you get on the boat you might not be able to reach the secret areas. If you get on the boat where it first comes out of a low tunnel and ride it into the bigger tunnel, there is a Max Damage. Note: In a few game modes like "Elimination", there is no boat. To tell if there is a boat, go to where it goes in the low tunnel and check if there is a boat waiting beside the tunnel. Note: The boat always goes the same way. Note: The boat will make a splashing sound when it passes by.

Beating Prometheus SD/7 and/or Prometheus SD/8
These are the large robots on the Machine Wars and Something to Crow About levels. When you see these robots, charge them until you run into their chest. When you are this close they cannot shoot you because their arms are too long. Then, shoot them in the head or, if you want to save on ammo, punch them to death.

Defeating the tank
Go to any ramp and remain out of the tank's sight. Use the Telekinetic Glove to take the ammunition when it spawns and attack the tank with your rockets.

Beating the techno-organic tank creature
Before you go into the room with the beast, take out every enemy in the room, then on the ground floor. Pick up the health and armor at either ends of the room. Now go upstairs and turn right. Follow the landing around to the end to pick up some powerful plasma grenades. Then, go into the room at the top of the stairs to battle the tank creature. This beast spawns exploding worms from its rear. Stay close to the pillars to avoid being burned by the spreading explosions. As for the beast, aim your explosives and guns at the weapons it is packing on his back. These include lasers, machine guns, rockets and others. At any chance you get, throw the five plasma grenades you have and try to get them to stick to the weapons that have not been destroyed. These do plenty of damage to the beast. Keep hugging the pillars for cover. In time you will have most of his guns. Do not aim for the organic parts of the creature, as it will take no damage. When it is beaten, you will meet Jacob Crow again.

Taking out the energy sphere
While your in the factory where the TimeSplitters are being incubated, the energy sphere powering their growth can be taken out on the top level by flicking both the switches on either side of the ball. This will lower its defense. Then, take the lift down to the floor below and throw a plasma grenade at it, causing it to go off.

Delete enemies
At any checkpoint, pause the game and select the "Restart from checkpoint" option. As soon as the game is unpaused, all enemies will be gone.

Beating the Deer Haunter
While your in the Brotherhood house, you will be trapped in a room with zombies. Kill the zombies with your pistol and baseball bat, but save every shotgun shells that you can. When you beat them all, the Deer Haunter crashes through the wall. The key to beating it is to walk in circles around the beast in the center of the room, continually shooting it in the torso with your shotgun while taking little damage. When it is dead, the door to the next room will open.

While your in the room where the Deer Haunter is at, use your baseball bat to kill the zombies. Do not use your guns save them. When the Deer Haunter comes out of the wall, run past him and into his cave. Now put your back to the wall and shoot him. He will not be able to hit you at all.

When the Deer Haunter breaks out of the wall, run into the small opening where he just broke out of and start shooting. The Deer Haunter will be in front of you swinging, but he cannot hit you while your in there.

Rescuing The Jungle Queen
Go into the prison cell on the other side. Make a line of vertical holes on the metal drum starting from the top. This results in a large pool of gasoline. Then shoot the lantern that hangs from the ceiling to blow it up.

Kill enemies with steam
In some levels there are metal pipes. If you shoot those pipes, steam might come out. If it does, it will hurt anything that does touch it. This is useful for killing enemies when you are low on ammo. Some mapmaker tiles' pipes also make steam. Note: The steam does not hurt any robot.

Get enemies to dive off gun turrets
Just throw a grenade at someone while they are on a gun turret. They will dive off and you can shoot them while they are on the ground.

Shoot through walls
The Mag-Charger can shoot through walls in arcade mode if you set it on its secondary fire mode. Note: The Mag-Charger is a shock weapon so you cannot hurt shockproof people with it.

Drain other people's life into your health meter
When you shoot someone with the Ghost Gun it will transfer his or her life into your health meter.

Punch someone without touching them
If you are close to a virus or someone on fire, you can punch them without touching them so that the fire cannot hurt you.

Hurt a shockproof person with the Electrotool
When set on alternate fire, the Electrotool can hurt a shockproof person.

Get a Scifi Handgun x2 in the "Machine Wars" story level
At the beginning of this level, just after you step off the broken bridge look forward and a bit to the left. Ghengis Kant will be lying dead on the ground, and next to him will be a Scifi Handgun x2.

Make Strudel "solid"
Normally when you drive up to someone with Strudel you will go through their feet. While your in story mode use the Uplink to pick up Strudel. Now press X and you will take control of Strudel when it flies off. As long as you do not stop, when you hit someone you will bounce back instead of passing through them. If you are going fast enough you can hurt them. Note: As soon as you stop moving you will start to go through people again and must redo this to make Strudel hit them.

Make Strudel fly
While your in story mode, use the Uplink to pull Strudel towards you. Once it gets close enough press the activate button to control it. You will release Strudel and will have control of it while it is flying through the air. Note: Strudel is light, and will fly for awhile.

Stick a mine to your foot
Simply aim down and to the right a bit when you are someone with big feet, like Robot Louis Stevenson. Throw a mine, TNT, or plasma grenade and it will stick on your foot.

Move the explosive barrels in the Machine War story levels and the 2401 story levels
While your in the Machine War story levels and the 2401 story levels there are rectangular barrels that have what appears to be a tiny energy node in the center. If you shoot this, the barrel explodes. While these look too heavy to move you can use the Uplink to move them. If you throw them at an enemy it will kill them, but the barrel might not go off. You can use them to kill people until they explode. Note: These are so big that enemies cannot shoot beyond them to hurt you, and they not smart enough to shoot the "node" in the middle to blow it up.

Grab something out of your reach without the Uplink
If you see something like a harpoon stuck in a wall or an item that is just out of your reach, do a melee attack to make your character's arms reach out. Sometimes you can grab it. A few melee attacks may work better than others. Here is an example, types of melee attacks from third person view: punching, bat swinging, pistol whipping, and hitting with the butt of your gun. Note: The machine gun and K-SMG will not show the melee attacks from a third person view. Also, Any double guns have the same melee attack as the single version.

Grab the Med-Unit 6
While your in the "Something To Crow About" story level, you can use the Uplink to grab the Med-Unit 6. If you drop these softly and they do not go off, they will just go away. If you throw them at something like the Uplink, normally they will explode with the force of more than three plasma grenades. Note: Often you will see the Med-Unit 6 just before a rolling robot attacks. The Med-Unit 6 is a good way to kill them. Note: If you throw a Med-Unit 6 at a shielded enemy, it will destroy their shield. This is really useful when you do not have an Electrotool.

Play music
Go into to arcade mode. Choose any game type but not "Mapmaking". Choose "Disco". Choose any character. Locate the drum, microphone, and guitar. Then press A near the drums. Every time you press A, a different drum will sound. Go to microphone and it will screech. Then have a friend do one while you do the other. Note: The guitar will never make a noise or sound.

Better accuracy
If you ha0ppen to have a double gun, switch to the single version for better accuracy.

Raining harpoons
Just fire harpoons straight up in the air in an outdoor level. They will rain down in roughly the same location ten seconds later. They will be moving sort of slow, and look strange as they fall. Someone who stands under these will catch a few harpoons, while other harpoons will spear them.

Grab a tranquilizer dart or harpoon out of the air
While your in story mode, when a tranquilizer dart or harpoon is coming towards you, use the Uplink to grab them out of the air. Instead of them sticking in you and harming you, you can collect them or they will fall to the ground.