Press '~' during game-play to bring up the console then type 'BeMyMonkey'to enable cheat mode and then enter the following codes. To disable the cheats enter 'BeMyMonkey' again.

Bemymonkey: Toggle Cheat Mode

God: Toggle God Mode
loaded: All weapons
Allammo: Gives 999 ammo
SetWeaponFire (0 or 1): Weapon Firing
fly: Flight Mode
walk: Normal movement (deactivates noclip or fly mode)
Open (map name): Map Select
nextlevel: Warp to next map level
Invisible [1 or 0]: Turn on (1) or turn off (0) invisibility

SetWeaponTrick [1 or 0]: Turn weapon trick on or off

Amphibious: Underwater Mode
behindview: 1 for 3rd person view, 0 for normal 1st person

freecamera: 1 to enable free camera movement, 0 to disable

ghost: Activate Noclip mode

toggleservos: Animation Servos

difficulty(number): Change Game Difficulty

ManCannon(number): Damage All Visible Pawns

ToggleSpeed: Double Speed

togglehud: Enable/disable Heads-Up Display

phoenix: Enable/disable Phoenix Powersuit

EnableFreeOrders: (0 or 1) Free Orders

ToggleFreezeView: Freeze View

GibHitNPC: Gib NPC Under Crosshair

GodEx (actor): God Mode For Selected Actor

HurtMe (number): Harm Player A Specific Amount

ToggleImpacts: Impacts

Actors: List All Actors

PO: Players Only

ToggleRMode: Rmode

ToggleScoreBoard: Scoreboard

CheatView (actor): See View From Indicated Actor

SetCameraDist (number): Set Camera Distance

SetJumpZ (number): Set Jump Height

SetParticleDestiny (number): Set Particle Destiny

SetEyeHeight: Set Player Eye Height

SetMyHealth (number): Set Player Health
ChangeSize (number): Set Player Size

SetSpeed (number): Set Player Speed

ShowTeams: Show Player Teams

SloMo (number): Slow Motion

Sum (item name): Spawn Indicated Item

DamageNPCs (number): Specify Damage to NPCs

Damage (number, target): Specify Damage to Target

SetHealth (number, Target): Specify Health to Target

Goodies (number, number): Summon Array of Goodies

ViewSelf: Target Camera on Player

teleport: Teleport to location at crosshairs

ToggleShowAll: Show Hidden Actors

ToggleShowKPs: Show Keypoints

ToggleShowNPs: Show Navigation Points
ToggleTimeDemo: Time Demo

Toggleinfiniteammo: Toggle Infinite Ammo

ToggleInvisibility: Toggle Invisiblity

ToggleReloads: Toggle Reloads

KillHitActor: Kill Actor Under Crosshair

killactivenpcs: Kill all active NPC entities

killdormantnpcs: Kill all dormant NPC entities

KillActor (actor): Kill Indicated Actor

KillHitNPC: Kill NPC Under Crosshairs
Spawning allies and enemies list
SU2Pawns.Aida: Aida

U2Pawns.U2AraknidHeavy: Araknid Heavy

U2Pawns.U2AraknidLight: Araknid Light

U2Pawns.U2AraknidMedium: Araknid Medium

U2Pawns.U2Bat: Bat

U2Pawns.U2Bellowfish: Bellowfish

U2Pawns.U2Chiton: Chiton

U2Pawns.U2CivilianScientist: Civilian Scientist

U2Pawns.U2CleaningBot: Cleaning Bot

U2Pawns.U2Cockroach: Cockroach

U2Pawns.U2ColonistHumanFemaleA: Colonist Human Female A

U2Pawns.U2ColonistHumanMaleA: Colonist Human Male A

U2Pawns.U2Cyprid: Cyprid

U2Pawns.U2Diver: Diver

U2Pawns.U2DrakkBoss: Drakk Boss

U2Pawns.U2DrakkDroid: Drakk Droid

U2Pawns.U2DrakkLight: Drakk Light

U2Pawns.U2DrakkMedium: Drakk Medium

U2Pawns.U2FlyingSnake: Flying Snake
U2Pawns.U2Forager: Forager

U2Pawns.U2Hummer: Hummer

U2Pawns.U2IceWorm: Ice Worm

U2Pawns.Isaak: Isaak

U2Pawns.U2Izarian: Izarian
U2Pawns.U2Jellyfish: Jellyfish

U2Pawns.U2KaiClothed: Kai Clothed

U2Pawns.U2KillerSprout: Killer Sprout

U2Pawns.U2KillerTadpole: Killer Tadpole

U2Pawns.U2NStriderLarge: Large Strider

U2Pawns.U2MarineHeavy: Marine Heavy

U2Pawns.U2MarineLight: Marine Light

U2Pawns.U2MarineMedium: Marine Medium

U2Pawns.U2MegaParata: Mega Parata

U2Pawns.U2MegaSnipe: Mega Snipe

U2Pawns.U2MercFemMedium: Mercenary Femaie Medium

U2Pawns.U2MercFemHeavy: Mercenary Female Heavy

U2Pawns.U2MercFemLight: Mercenary Female Light

U2Pawns.U2MercJapHeavy: Mercenary Jap Heavy

U2Pawns.U2MercJapLight: Mercenary Jap Light

U2Pawns.U2MercJapMedium: Mercenary Jap Medium

U2Pawns.U2MiniMukhogg: Mini Mukhogg

U2Pawns.Neban: Neban

U2Pawns.U2Parata: Parata

U2Pawns.U2PinwheelFish: Pinwheel Fish

U2Pawns.RaffTrainingBot: Raff Training Bot

U2Pawns.U2Rammer: Rammer

U2Pawns.U2RepairBot: Repair Bot

U2Pawns.U2Schoolfish: Schoolfish

U2Pawns.U2Seagoat: Seagoat

U2Pawns.U2SentryBot: Sentry Bot

U2Pawns.U2ShianWarrior: Shian Warrior

U2Pawns.U2ShianWorker: Shian Worker

U2Pawns.U2SkaarjHeavy: Skaarj Heavy

U2Pawns.U2SkaarjLight: Skaarj Light

U2Pawns.U2SkaarjMedium: Skaarj Medium
U2Pawns.U2NStriderSmall: Small Strider

U2Pawns.U2Snipe: Snipe

U2Pawns.U2SpecialCivilian: Special Civilian

U2Pawns.U2Spore: Spore

U2Pawns.U2Tosc: Tosc

U2Pawns.U2TubeWorm: Tube Worm

U2Pawns.U2Uglyfish: Uglyfish

U2Pawns.U2WaterDipper: Water Dipper