At the main menu, choose the "Options" selection, then select the "Enter Code" option. Then, enter one of the following codes

Successfully complete the game with the Jedi ending.

Successfully complete the game.

Successfully complete the game with the Sith ending to unlock the Sith Stalker armor.

This robe is unlocked after an intermission sequence. Turn around and look behind you after the intermission sequence where Starkiller has a vision in the hut. There should be a Holocron behind a wooden object. Collect it to unlock Kento's robe.

After defeating the first junk Titan you encounter, go across, and from the bridge after this you must fight more of the Force-controlled robots. Once this is done, leap across a large area. Once there, to your left will be a section of steel beams. Force Push these down to find the Holocron that will unlock the Sith robe.

The following Crystals can be found on the indicated levels:

TIE Construction Yard
Yellow Crystal
Damage Crystal

Raxus Prime
Compressed Red Crystal
Gold Crystal
Compressed Yellow Crystal
Firkrann Power Crystal

Felucia
Unstable Red Crystal
Compressed Gold Crystal

Empirical Lab
Blue Crystal
Lorrdian Crystal

Cloud City
Unstable Orange Crystal
Ruusan Power Crystal
Unstable Yellow Crystal

Kashyyyk
Compressed Blue Crystal
Purple Crystal
Imperial Felucia

Green Crystal
Compressed Purple Crystal
Vexxtal Crystal
Unstable Blue Crystal

Imperial Raxus Prime
Sigil Power Crystal
Compressed Green Crystal
Unstable Purple Crystal

Death Star
Unstable Green Crystal
Katak Power Crystal
Black Crystal

Successfully complete the indicated task to unlock the corresponding bonus. There are a total of 115 Holocrons that can be collected.

TIE Factory
Bonus objective: Destroy 5 TIE fighters to get a Force Talent Sphere.
Force Points: Get 200,000 FP to get a Force Combo Sphere.
Holocrons: Get 15 Holocrons to get a Force Power Sphere.

Raxus Prime: Act 1
Bonus objective: Destroy 10 Scavenger Skiffs to get a Force Talent Sphere.
Force Points: Get 250,000 FP to get a Force Combo Sphere.
Holocrons: Get 15 Holocrons to get a Force Power Sphere.

Felucia: Act 1
Bonus objective: Kill 4 Rancors to get a Force Talent Sphere.
Force Points: Get 375,000 FP to get a Force Combo Sphere.
Holocrons: Get 15 Holocrons to get a Force Power Sphere

Empirical: Act 2
Bonus objective: Destroy remaining escape pods to get a Force Talent Sphere.
Force Points: Get 150,000 FP to get a Force Combo Sphere.
Holocrons: Get 5 Holocrons to get a Force Power Sphere.

Cloud City
Bonus objective: Freeze 10 Imperials with Carbonite to get a Force Talent Sphere.
Force Points: Get 200,000 FP to get a Force Combo Sphere.
Holocrons: Get 5 Holocrons to get a Force Power Sphere.

Kashyyyk: Act 2
Bonus objective: Destroy the Imperial Comm Tower to get a Force Talent Sphere.
Force Points: Get 360,000 FP to get a Force Combo Sphere.
Holocrons: Get 15 Holocrons to get a Force Power Sphere.

Felucia: Act 2
Bonus objective: Release the Sarlacc to get a Force Talent Sphere.
Force Points: Get 425,000 FP to get a Force Combo Sphere.
Holocrons: Get 15 Holocrons to get a Force Power Sphere.

Raxus Prime: Act 2
Bonus objective: Destroy the orbital ship yard to get a Force Talent Sphere.
Force Points: Get 500,000 FP to get a Force Combo Sphere.
Holocrons: Get 15 Holocrons to get a Force Power Sphere.

Death Star
Bonus objective: None
Force Points: Get 500,000 FP to get a Combo Sphere.
Holocrons: Get 15 Holocrons to get a Force Power Sphere.

Complete each condition to get the allotted Trophies.

Reach a checkpoint that is just before a large group of enemies. Intentionally die during the battle. Every time you respawn at the checkpoint, your Force Point total will remain intact. Repeat the battle to build your Force Point total.

When you reach the point in the factory where the TIE Fighters attack you, there are metal beams you can bend. Bend the last one backward and make it a sort of step. Jump on the bent part and then again. Look at the roof of the hallway and jump there. There is a clone trooper helmet on the ground.

After you have electric bombed the initial entrance to the Hyperdrive Core three times, stand facing away from the entrance and walk to the right slightly. Look into the toxic waster sludge and you will automatically target something. Raise it up with Force Grip to see that it is an X-Wing.

Reach a checkpoint that is just before a large group of enemies. Intentionally die during the battle. Every time you respawn at the checkpoint, your Force Point total will remain intact. Repeat the battle to build your Force Points.

Grip an enemy, shock them with Force Lightning, then Force Throw them at other enemies. The enemy will explode, killing all nearby foes with minimal Force Power consumed.

For the first part of this battle, use Force Repulse or Force Shield with lightsaber attacks to take him down. When he runs into the room with hot red floors, pull an object off the wall, and hit him with it before he hits you. After he is hit, Force Dash over to where he is, and perform some easy attacks on him. Once he jumps on to the platform with you, use Force Repulse or Force Shield, and perhaps some Force Lightning. Try to block as much as possible; if he hits you, he will do quite a bit of damage. Once he is almost dead, press X to start the button sequence. After a short intermission sequence, you will have to battle him again, this time without his helmet. This battle is very easy. Just make sure you stay out of the air. He will try to use Force Grip on you if you are in the air and he is not stunned. Use Force Dash to get away from him, then use Force Repulse to break his block, and get a couple hits in. It will only take a few Force Repulses to take him out, even on the Sith Master difficulty. Do the button sequence to defeat him.

Make sure that you have your Force Shield up to level 1 or 2 before the battle with Maris begins (depending on the difficulty). When Maris becomes invisible, charge up your Force Shield. If it is at level 2, the arcs of lightning will show where she is. You can attack her while the electricity has her stunned. If it is not at level 2, try to randomly attack when she is invisible or use the Force Shield while she is still visible to get easy hits on her.

In the final mission where you are in the area of the Death Star where all of the green lasers meet, take the Graviton Generator up to its highest point. You should then be able to see the Holocron. It is on the platform just above the highest laser. It is somewhat difficult to reach. Use the Gravitron Generator to get as high as possible. When you are higher than the platform that the Holocron is on, press LB, B to get across.

Once on the Death Star, fight your way to the large focusing chamber with the two graviton lifts. Fight the two AT-ST's at the bottom of the room, then activate the lifts. Take them to the very top of the room, and kill any Imperials in your way. At the top, look above the laser focusing crystal, and you should see a Jedi Holocron. To get there, you must jump on the beam above the laser channel. If you can time it right, you can get there by jumping from the top grav lift ring, but this can take a while. To make it easy, stand on the top grav lift ring, and pull one of the channel rings out of its place, and put it between the Apprentice and the beam you need to get to. Be sure to place it on the ground, and then just let go or else the ring will break, roll away, or tip over. Once in place, jump onto the ring, then onto the beam (be careful of the laser as one hit will kill you), then get the Holocron, and equip the Crystal.

Get through the second gate, and enter a room where you must fight one of the Emperor's royal guards. In the room with the Wookie on the wall, to the left is what appears to be Jar-Jar Bink, frozen in Carbonite, as well as some other memorable characters from the Star Wars movies such as the eye of the creature that was in the trash compactor with Luke, and the little creature that sat next to Jabba the Hutt.

After you bend out the first mangled mess of metal and kill all the Rodians, stay to the right along the platforms as much as possible. When you reach the end prior to the chasm, look over the edge to see the Millennium Falcon.

The game cannot be saved when non-costume codes are enabled. To bypass this, enable the code on a level that has an auto-save point. After reaching that location, intentionally die or press Start. Exit to the main menu then select "Continue". You can now manually save the game with that code still active.