up, down, left, down, left, right Funny comic book captions appear when you attack a Rebel as a Wampa
up, up, up, left, up, down, up, up, left, down, down, down, left, up, down, down, left, right Alternate Sounds
up, down, left, down, down, left, down, down, left, down, down, down, left, right Infinite Ammo
Up, Up, Up, Up, Left, Up, Up, Down, Left, Down, Up, Up, Left, Right No HUD
Down, Down, Down, Up, Up, Left, Down, Down, Down, Down, Down, Left, Up, Up, Up, Left Right Alternate Soldiers
Up, Up, Up, left, down, down, down, left, up, up, up, left, right Invincibility

Slow motion sounds
Pause the game in Story, Instant Action, or Galactic Conquest mode and press

Cheat Effect
Up(3), Left, Up, Down, Up(2), Left, Down(3), Left, Up, Down(2), Left, Right. Slow motion sounds

Unlock new weapons and abilities.
Unlock special bonuses and advanced weapons by performing certain actions.
Unlockable How to Unlock
War Hero (Damage Increase) 24 Points
Guardian (Shielding) 16 Points
Endurance (Energy Recuperation) 8 Points
Regulator (Flechette Shotgun) 8 Kills with Shotgun (within one life)
Marksman (Particle Beam Rifle) 6 Headshots with Sniper Rifle (within one life)
Technician (Vehicle Regen) Slice into a Vehicle
Demolition (Guidable Rockets) 4 Critical Hits vs. Vehicles (within one life)
Frenzy (Elite Assault Rifle) 12 Kills with Blaster Rifle (within one life)
Gunslinger (Precision Pistol) 6 Kills with a Pistol (within one life)
Private (Control 1 unit) Have 000-019 Medals Total
Sergeant (Control 2 units) Have 020-099 Medals Total
Captain (Control 3 units) Have 100-299 Medals Total
General (Control 4 units) Have 300+ Medals Total

Start With Advanced Weapons
In order for these bonuses to take effect, switch between your weapons
Unlockable How to Unlock
Precision Blaster Get Legendary Status in Gunslinger
Elite Assault Rifle Get Legendary Status in Frenzy
Guidable Rockets Get Legendary Status in Demolition
Vehicle Regen Get Legendary Status in Technician
Particle Beam Rifle Get Legendary Status in Marksman
Flechette Shotgun Get Legendary Status in Regulator

Unlock special soldiers
How to unlock the blacked out soldiers
Unlockable How to Unlock
Magnagaurd Get 8 total points in battle
Droidika Get 12 total points in battle
Clone commander Get 8 total points in battle
Jet trooper Get 12 total points in battle
Imperial officer Get 8 total points in battle
Dark trooper Get 12 total points in battle
Bothan spy Get 8 total points in battle
Wookie warrior Get 12 total points in battle

Medals and Its' Discount
Do the requirements and you will get the medal. Each medal need collected in one life.
Unlockable How to Unlock
Gunslinger 6 kills with Pistols, 4 required in Elite. One life required.
Technician Slicing a vehicle in one life. No discount.
Demolition Deal 4 critical hits on vehicles with Rocket Launcher in one life. 3 required in Elite.
Marksman 6 headshots with a Sniper Rifle in one life. 4 required in Elite.
Regulator 8 kills with Shotgun in one life. 6 required in Elite.
Endurance 12 points collected in one life. 9 required in Elite.
Guardian 24 points collected in one life. 18 required in Elite.
War Hero 36 points collected in one life. 24 required in Elite.
Frenzy 12 kills with Blaster Rifle in one life. 9 required in Elite.

Weapon Class Ranks
Different weapon class ranks determined by number of medals you have.
Unlockable How to Unlock
Green 00 -04 Medals in Class (No bonus activated.)
Veteran 04 - 29 Medals in Class (Bonus activated after requirements met.)
Elite 30 - 63 Medals in Class (Bonus activated after requirements met. [Lower requirements then Veteran, possible better bonus?])
Legendary 64 + Medals in Class (Bonus automatically granted at beginning of each match.)

Unlockable bonus
Unlockable How to Unlock
Energy Regen Get legendery (64+ medals)in Endurance
Damage Reduction Get legendery (64+ medals)in Guardian
Damage increase Get legendery (64+ medals)in War Hero

Star Wars Battlefront II GlitchesForce Combo
This only works while playing as the Emperor or Count Dooku. Execute a Force Choke against the enemy, then while still holding the trigger press the Switch Secondary button to change to Force Lightning. The lightning will go off while you are still choking them and they will take damage from both while you'll only spend the energy required for one. This can work with other combinations as well such as the lightsaber throw.