Get a bronze or better on the Rare -Or Well Done challenge on Behead The Undead.
Successfully complete story mode under the normal or hard difficulty setting.
Successfully complete co-op story mode.
Complete the Amateur League with golds.
Complete the story mission Kharlos Express.
Get a "Bronze" or better rank in the Challenge "The Cats Pajamas".
Complete the story mission Something To Cry About.
Henchman Cortez and Swinging Tipper
Complete The Russian Connection.
Complete the Elite League with "Gold" ranks.
Successfully complete co-op story mode.
Successfully complete the Behind The Undead challenge (the first one) with bronze, silver, or gold.
Complete the Cats Out Of The Bag challenge with bronze, silver, or gold.
During challenges and arcade leagues, if you get past gold and get about another one third of the gold score, you can get a platinum trophy. For example, on Behead The Undead with the zombie monkeys the gold score is 25,000 points. If you get 35,000 points you will get a platinum.
Entering And Hacking
The tank robots can do a lot 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 quickly.
Mansion Of Madness: Make Jo-Beth Casey attack you
If you put Jo-Beth on fire while she has her shotgun out, she will usually start shooting you until she sees someone else to target.
Mansion Of Madness: Make zombies get up
To make a zombie that is on the ground get up so you can kill it (so it cannot sneak up on you later) put it on fire. It will scream and get up. You can then kill it.
Mansion of Madness: Avoiding zombies
When playing this level, you will encounter some zombies. To avoid them, duck. They will keep trying to attack, but you will not get hit. Note: This does not work with zombies with weapons.
Mansion of Madness: Defeating Princess
Stay 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 dodge the fire. When she is done, go back in the corner. Note: Always shoot her in the head.
To defeat The Princess, side-step in one direction while aiming up and turning. The closer that Cortez is to the fountain, the greater the chance to avoid being swiped. When the Boss is about to die, step back and fire the last shots to avoid the final death blow.
When it pops up, start shooting it in the head a few of times. Then, look at the base and an a eye will open. Shoot at it and its health will go down a lot.
Mansion Of Madness: Defeating Carrion Carcasses
When you see a Carrion Carcass instead of shooting it, hit it with a bat twice and it will die.
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. All of the health packs in this level restore your entire health meter.
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 to your right. Press [Action] next to them to open them. There will be a health pack in them. The Russian Connection: Easily kill guards in the sniping portion
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 away the fireplace. Open it to find a health pack inside. Unless you are low on health, do not use this until after you save the scientist from the giant worms.
In the big room with the giant table after you get the shotgun, turn left. There will be two low dressers against the wall with the door you used to get 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 while or after you fight the Deerhaunter.
After you defeat the Deerhaunter, go up the stairs and into the door to your right. This takes 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 far left corner there is an armoire. Open them to find a health pack in each.
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 turns. After the turn, go to the last room on the right where the zombie breaks out of the armoire. In the far left corner of the room is a low dresser next to the bed. Open it to find a health pack inside.
After you see the little girl's ghost in the attic and the zombie breaks though the wall, there is a little room and a hall. Go down the hall and jump into the lower part of the attic. There is a scientist that is dying near the stairs. To his right is a health pack.
After you fall through the floor and walk down the stairs, a scientist will talk to you about his "great leader". If you continue 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.
In the kitchen where you fight the Carrion Carcasses after you fight Princess (the creature), there is a table to the left. There is a health pack sitting on top of it.
In story mode, if you throw a grenade with maximum power you can get it in the part of the area 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. Throw a grenade in the middle of all of them as they come out, and a barrel will explode and kill them all.
Scotland The Brave: Get a flare gun
When you first start the Scotland The Brave story mission, turn left and run over to the boat. There will be a flare gun inside.
Scotland The Brave: Get a Double Kruger
In story mode, stay close to the water at the beginning before you get in the castle with the ship. As you near the castle, someone with Double Krugers will run out of one of the destroyed buildings. Kill him and take his gun.
Scotland The Brave: Armor and other items
At the beginning of the level in story mode, there are some destroyed buildings as you run towards the castle. Go inside them. You will find things like armor and grenades.
Scotland The Brave: Easy kills
In story mode, at the checkpoint immediately after you defeat the gunboat, throw a grenade in a window on the roof of the building where you get the truck. This will kill most of the guards inside.
Scotland The Brave: Extra TNT
In story mode, get to the door you must destroy with TNT. Wait for a short time 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
In story mode, in the room where you see the meeting being held, instead of fighting the guards there, run straight to the door in the room. An intermission sequence will begin, and the enemies will disappear. This saves ammunition and health.
Go to the control room (where you can see the main train tracks) or just be a member on the red team in a team match. Red members start near or in the control room. You will see three switches. Press [A] on the middle one. You will see a train come out from each opening. If you are on either track and the train hits you, you will die. However, it does not count as a kill for the person who activated the trains.
What Lies Below: Defeating the Boss
Use the Ghost Gun and position yourself carefully. Find a rock that shields Cortez's legs while allowing him to fire back. The fire attack from the Boss must drop to the floor before moving forward. The rock will protect you from most of the fire damage. Use a melee attack to kill the bats and allow the Ghost Gun to damage the tank.
What Lies Below: Defeating Princess
When you fight the giant eye monster (Princess), run right up against the well and shoot. You should not be able to get hit.
The final Boss, called Princess, can easily be defeated with the Harpoon weapon. Just wait for the beast to open its mouth and fire away, aiming for the metal container in said mouth. Three harpoon shots on target and Princess will belong to the past.
What Lies Below: Lab computers
In the area just after the electric zombies, you will see a few rooms with a glass cage by them. On the nearby computer, you can have the subject inside the cage undergo electricity, incineration, shrinking, zombifying, stretching, cranium-expanding, and thinning. If you power up the stretching or cranium-expanding too much, the subject will explode. There are two computers in single player and one computer in co-op mode.
Venice: Get to hidden places
In Venice there are secret areas with the number six weapon and other items. To get to these places, wait by the water for a boat to pass. When the boat passes by, walk onto it. There are two spots that if you walk into them they are not accessible from the rest of the level. Depending on where you get on the boat you might not be able to get to the secret areas (if you get on too far down the river). If you get on the boat where it first comes out of a low tunnel and ride it into the large tunnel, there is a Max Damage. Note: In some 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 next to the tunnel. Note: The boat always goes in the same direction. Note: The boat makes a splashing sound when it goes by.
Zeppelin: Bomb drop
At the center room of the Zeppelin multi-player map is a hatch that opens. It will be very easy to figure out with the power-ups on. The platform that holds the Max Damage power-up is the detachable platform. Fire at the platform and the hatch below it will open. This causes the platform fall out of the zeppelin, to the unlucky player(s)' doom.
Absolutely Potty challenge: Destroy pots while reloading
While you reload, push the pots into each other and they will break most of the time.
Behead The Undead challenge
In these challenges you are fighting zombies. Keep moving and you will not have a problem. Make sure to stay out of corners and get used to your surroundings so that you can move and not get trapped between the zombies. It is possible to get at least 75,000 points on every one of the three by using this technique.
Come Hell Or High Water challenge: Extra points
Shoot the targets in the genitals for 100 points. If you shoot close to the genitals 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 saves ammunition and almost always kills them in one shot.
Big Game Hunt league
Use the "Zeep" to kill the Deerhaunters.
Pox Of Mox league
When you start, go to the zone nearest you, then follow the zones outside. Once you gain control of the outside zone, kill all the Moxes then go to the door opposite of the outside zone (the one the Moxes came from). Once inside, follow the corridor to the first zone inside and stay there. All the Moxes will come around the corner in front of that zone in a line and you can kill them very easily. Do not let any get past that point and you can keep the first four zones under your control very easily. Note: If done correctly you can finish the level in 2:45.
Screw Loose league
Kill the Monkeys as fast as you can and do not let them get in a group. As soon as they get in a group, whenever you kill one they will automatically get the coin because it falls on them.
Don't Lose Your Bottle
Use the Single LX-18 with the scope and you will have better accuracy and in turn will save ammunition and time.
Train: Drive cat
When you get trapped in the room and the green gas floats in, use your glove to tip the statue back. When in that room, you will find the cat. You can drive it around.
Train: Slot machine
When 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 [A] to play slots. Press the buttons under "Hold" to hold that slot.
Defeating the Deer Haunter
In the Brotherhood house, you will be trapped in a large room with zombies. Take out the zombies with your pistol and baseball bat, but save all the shotgun shells that you can. When you defeat them all, the Deer Haunter crashes through the wall. The key to defeating it is to walk in circles around the beast in the middle of the room, continually shooting it in the torso with your shotgun while taking minimal damage. When it is defeated, the door to the next room will open.
In the room where the Deer Haunter is found, use your baseball bat to kill all 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. Put your back to the wall and shoot him. He will not be able to hit you.
When the Deer Haunter breaks out of the wall, quickly run into the small opening where he just broke out of and start shooting. The Deer Haunter will be directly in front of you swinging, but he cannot hit you while your in there.
Rescuing The Jungle Queen
Enter the prison cell on the other side. Create a line of vertical holes on the metal drum starting from the top. This results in a large pool of gasoline. Shoot the lantern that hangs from the ceiling to blow it up.
Defeating Prometheus SD/7 and/or Prometheus SD/8
These are the huge 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 ammo, punch them to death.
Defeating the tank
Go to any ramp and stay out of the tank's sight. Use the Telekinetic Glove to take the ammunition when it spawns and attack the tank with rockets.
Defeating the techno-organic tank creature
Before you enter the room with the beast (at the checkpoint), take out all of the enemies in the room, then on the ground floor. Pick up the health and armor at either ends of the room. Go upstairs and turn right. Follow the landing around to the end to pick up some very powerful plasma grenades. Then, go into the room at the top of the stairs to face the tank creature. This beast spawns exploding worms from its rear. Remain close to the pillars to avoid being incinerated 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 opportunity you get, throw the five plasma grenades you have and try to get them to stick to the weapons that have not been destroyed yet. These do a lot of damage to the beast. Keep hugging the pillars for cover. After awhile, you will have most of his guns. Do not aim for the organic parts of the creature, as it takes no damage. When it is defeated, you will meet Jacob Crow again.
Taking out the energy sphere
In the factory where the TimeSplitters are being incubated, the giant 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 (found next to the lift) at it, causing it to explode.
At any checkpoint, pause game play and select the "Restart from checkpoint" option. As soon as the game resumes, all enemies will be gone.
Kill enemies with steam
In certain levels there are metal pipes. If you shoot those pipes, steam might come out of them. If it does, it will hurt anything that touches it. This is useful for killing enemies when you are low on ammunition. Some mapmaker tiles' pipes also produce steam. Note: The steam does not hurt robots.
Hitting enemies with flare gun
The best possible way to hit moving targets with the erratic and slow flare gun is to aim at their feet or the ground they are standing on.
Get enemies to dive off gun turrets
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 to its secondary fire mode. Note: The Mag-Charger is a shock weapon -- you cannot hurt shockproof people with it.
If you have a double gun, switch to the single version for better accuracy.
Fire harpoons straight up in the air in an outdoor level. They will rain down in about the same location approximately ten seconds later. They will being moving sort of slow, and look strange as they fall. Someone who stands under these will catch some harpoons, while other harpoons will spear them.
Grab a tranquilizer dart or harpoon out of the air:
In story mode, when a tranquilizer dart or harpoon is coming at you, use the Uplink to grab them out of the air. Instead of them sticking in you and hurting you, you can collect them or they will fall to the ground.
Drain other people's life into your health meter
When you shoot someone with the Ghost Gun it transfers 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 technically touching them so that the fire cannot spread to or hurt you.
Hurt a shockproof person with the Electrotool
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 the level, just after you step off the broken bridge look forward and slightly 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. In story mode use the Uplink to pick up Strudel. Press [X] and you will take control of Strudel when it flies off. As long as you do not stop, whenever you hit someone you will bounce back instead of going 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 repeat this process to make Strudel hit them.
Make Strudel fly
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 automatically release Strudel and will have control of it while it is flying through the air. Note: Strudel is very light, and will fly for a long time.
Stick a mine to your foot
Aim down and to the right slightly when you are someone with big feet, like Robot Louis Stevenson. Throw a mine, TNT, or plasma grenade and it will stick to your foot.
Move the explosive barrels in the Machine War story levels and the 2401 story levels
In the Machine War story levels and the 2401 story levels there are rectangular barrels that have what looks like a tiny energy node in the middle. If you shoot this, the barrel explodes. While these look too heavy to move you can use the Uplink to move them around. If you throw them at an enemy it will kill them, but the barrel might not explode. You can use them to kill people until they explode. Note: These are so big that enemies cannot shoot past them to hurt you, and they are too dumb to just 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 you reach, do a melee attack to make your character's arms go out. Sometimes you can grab it that way. Some melee attacks may work better than others; for example, types of melee attacks from third person view: punching (unarmed or Uplink), bat swinging (baseball bat), pistol whipping (brick, pistol 9mm, Kruger 9mm, LX-18, Scifi handgun, revolver, Mag-Charger, monkey gun, flare gun, proximity mines, remote mines, timed mines), and hitting with the butt of your gun (Injector, flamethrower, shotgun, Dispersion gun, Tactical 12-Guage, Soviet rifle, harpoon gun, ElectroTool, Plasma Autorifle, SBP500, Minigun, rocket launcher, heatseeker, Ghost Gun, Scifi Sniper, vintage rifle, sniper rifle). Note: The machine gun and K-SMG do 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
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 explode, they will just disappear. If you throw them at something like the Uplink, usually they will explode with the force of over three plasma grenades. Note: A lot of the time you will see the Med-Unit 6 just before a rolling robot attacks. The Med-Unit 6 is the best way to kill them. Note: If you throw a Med-Unit 6 at a shielded enemy, it will destroy their shield. This is useful when you do not have an Electrotool.
Go to arcade mode. Choose any game type except for "Mapmaking". Choose "Disco". Choose any character. Find the drum, microphone, and guitar. Press [A] near the drums. Each time you press [A], a different drum will sound. Go to microphone and it will screech. Have a friend do one while you do the other. Note: The guitar never makes a noise or sound.
In the first mission, when you man the machine gun to defend the base you will hear someone screaming "They're coming out of the walls! They're coming out of the goddamn walls!" This is a reference to the movie Aliens.
Battlestar Galactica reference
When you select INSTETIK in multi-player mode he says "By your command." like a Cylon from Battlestar Galactica.
Indiana Jones And The Temple Of Doom reference
On the level were you kill "Princess", the contraption that Jo-Beth is on is the fire cage from Indiana Jones And The Temple Of Doom.
Jurassic Park reference
When you are at Crow's computer, when you activate the countdown/self-destruct sequence, the monitor will display the message "You didn't say the magic word" and will have a little guy laughing and shaking his finger.
Perfect Dark references
Story level "Breaking And Entering" is a mission that acts much similar to the Perfect Dark level "DataDyne Central: Defection". Both involve being on a rooftop, taking out security, and making your way to someone's private office, and then into the labs below the building. Also, like Joanna Dark, Amy Chen is also investigating a company's research. In "Something to Crow About", R-110 unexpectedly gets its own personality, much like Dr. Caroll.
Starship Troopers reference
When you are trying to help Past Cortez from being killed by the TimeSplitters on the beach, you can hear one of the men yelling "Come on! Do you want to live forever!".
TimeSplitters 2 reference
Story levels "Machine Wars" and "Something to Crow About" play similar to "Robot Factory" in TimeSplitters 2, considering that you fight robots similar in ability to ChassisBots and SentryBots. Also, you get involved in taking out energy sources, much like the energy nodes in "Robot Factory".
In Scotland The Brave, after you save the jungle queen go to the piano. It sometimes plays the song from the Anacoda min-game from TimeSplitters 2.
Glitch: Co-Op teleportation
If one character under control moves too far ahead of the other one, the one who was left behind will "teleport" a few feet ahead of the first character, often resulting in strange camera angles.
Glitch: Dumb robots
Equip a spawn-an-attack INSETIK with a baseball bat in Mapmaker. All it does is walk a few feet forward and knock itself in the head with the bat. Even if you go up to it, it will not attack.
Glitch: Rapid firing enemies
Some story AI characters in Mapmaker have the ability to fire some weapons like machine guns. The most noticeable way to make this happen is to set a Cropolite with a Flare Gun. Although it takes about three seconds to load a Flare Gun, some Story AI characters still fire it rapidly without ever worrying about reloading.
Glitch: Butterfingered bots
Note: This may or may not work with any other character besides Berserker Splitter. Go to Mapmaker and set up a Berserker Splitter with a key. When it does its camouflage cloaking and reappearing, it will accidentally drop the key. It is possible the game does not treat the cloaked Splitter as a solid character and causes the key to fall.
Glitch: Wrong voice
When playing as Mr. Socky, his voice is like an old man character when he is set on virus. However, his voice is not like that when he is shot.