Star Wars: Battlefront 2 cheats and cheat codes for Sony PSP

Type the following button combinations. If you entered correcty you 
will hear a sound.

Toggle Invincibility:
Pause the game in single player mode after press: 
Up, Up, Up, Left, Down, Down, Down, Left, Up, Up, Up, Left, Right. 
To disable this cheats, shut down your PSP.

Unlimited ammo:
Pause the game in single player mode after press: 
Up, Down, Left, Down(2x), Left, Down(2x), Left, Down(3x), Left, Right. 
Type again to disable.

Unlock Low resolution soldiers:
Pause the game in single player mode after press: 
Down(3x), Up(2x), Left, Down(5x), Left, Up(3x), Left. 
Type again to disable.

Disable HUD:
Pause the game in single player mode after press: 
Up(4x), Left, Up(2x), Down, Left, Down, Up(2x), Left, Right. 
Type again to disable.

Slow motion voices:
Pause the game in single player mode after press: 
Up(3x), Left, Up, Down, Up(2x), Left, Down(3x), Left, Up, Down(2x), 
Left, Right. To disable this cheats, shut down your PSP.

Jedi-Wampa hit effects:
Pause the game in single player mode after press: 
Up, Down, Left, Down, Left, Right.
Type again to disable.