Jedi Knight 2: Jedi Outcast Cheats (Xbox)

Go to the Cheat menu under Extras and put in the
  code BISCUIT

Enter "FUDGE" as a code at the cheats screen under the "Extras" menu.

Use Force Speed to move faster, then attack him with as many blows as possible.

Hide behind one of the pillars in the four corners of the floor. Desan will throw his
lightsaber at you, but it will cut through the rock pillars and will fall on him, killing
him instantly. Note: Use the invincibility beam in the center of the room first so
his saber does not hit you.

Select Mind Trick for your Force weapon. When he shoots his lightsaber, block it away
to the ground. Use the Jedi Mind Trick and attack him. He will be vulnerable for about
five seconds.

The following trick allows you to walk on walls using a little bit of Force power for
short amount of time. Go up to a wall. If the wall is to your right, press Left
Analog-stick Up/Right and press A. You should walk on the wall. If the wall is to your
left, Left Analog-stick Up/Left and press A.

If you have Saber Defense to the top in Force powers, it is easier to kill enemies with
lightsabers. Defend their blows and sometimes they will get hit and get killed.

When you get to the harder levels, you will find out that Dessan (Dark Jedi) had
followed you to the Valley of the Jedi and was giving his fighters the power of the Force
and created fake Jedi. You will have to fight these people throughout the game. If you do
not want to waste your time fighting them, then use Force Speed. You will move incredibly
faster than your opponent and can attack them while his lightsaber is going too slow.

After you get Force Grip, use it and Saber Throw to kill the "fake" Jedis. This take
longer as you progress in the game, but it still works. To kill opponents faster, change
your lightsaber mode to red (strong).

To enable 99 stat points while utilizing the multi-player function, pan the character
screen and select Beedo. Scroll down and equip the yellow light saber, and initiate the
Jedi Master rank. This causes a significant increase in stat point selection.

Enter "DEMO" as a code at the cheats screen under the "Extras" menu to unlock the
Alzoc III level. Alternately, successfully complete the game on any difficulty setting,
then go to "Extras" and enter the level selection screen. The Mission To Alzoc III level
will appear all the way at the bottom. Note: Your Force powers will not be at
their maximum strength.

Code - Result

CHERRY - Unlock 7 Single Player Levels 

FLICKY - Unlock All Movies 

BISCUIT - Infinite Ammo 

BUBBLE - Infinite Health 

FUDGE - Unlock Lightsaber 

PEEPS - Unlock MP characters

When you jump to get to the other end of a moving reactor and face the Reborn Jedi, when
he is close to either end of the moving things Force Push him or slash him into it. Then,
watch him evaporate out of thin air.

Go to the Cheat menu under Extras and put in the
  code FUDGE

Enter "CHERRY" as a code at the cheats screen under the "Extras" menu to unlock the
first seven levels.

Go to the Cheat menu under Extras and put in the
  code CHERRY

Enter "SCOOTER" as a code at the cheats screen under the "Extras" menu.

Go to the Cheat menu under Extras and put in the
  code BUBBLE

Go to the Cheat menu under Extras and put in the
  code PEEPS

Strafe left or right (recommended) and keep pressing an attack. Kyle should swing his
lightsaber to the right and his left hand should release his lightsaber.

Go to the Cheat menu under Extras and put in the
  code DEMO

Go to the Cheat menu under Extras and put in the
  code FLICKY to unlock all FMV's

Enter "PEEPS" as a code at the cheats screen under the "Extras" menu to unlock all
multi-player characters.

To get through the blast door, activate the defense guns. After killing the Storm
Troopers, get on the defense guns and shoot the blast door with the alternate attack.
Note: The defense guns are activated upstairs and can only be accessed with the key an
officer has.

Enter "FLICKY" as a code at the cheats screen under the "Extras" menu to unlock all
FMV sequences.

At the top of your jump, use non-Force jump. Note: This does not always work and may only
work in some levels.

You can use your Force Push ability to push away almost any enemy projectile (laser
blasts, rockets, metallic bolts, etc.). Note: This can be done from a sizable
distance. For example, a Stormtrooper could be firing at you clear across the other side
of the room and you can still push away the blasts.

Push them using Force Push, then run up to them close enough that you touch them. Then,
push them. Note: This will only work if they touch a wall. When you are fighting
Stormtroopers or Swamptroopers, use Force Push, then throw your lightsaber at the fallen
enemy. This almost always kills them instantly. To safely disarm Stormtroopers, use your
Force Pull to pull their guns out of there hands. Whenever you face Stormtroopers near an
edge, you can push them off.

Trap him in a corner then keep slashing him. This tactic may not always work, but it will
make him weaker.

Enter "BISCUIT" as a code at the cheats screen under the "Extras" menu.

At the shield generator, go to the dynamite on the top of green energy pipes. There is a
large shield booster and a seeker drone. First, jump on the pipes you destroyed. Then, go
to the edge of the pipe, jump flip to the next one, and repeat.

Enter "BUBBLE" as a code at the cheats screen under the "Extras" menu.