Fun and challenging, SWAT: Target Liberty will make the time fly by if you're traveling. The PSP is home to lots of cool action games, but few have the appeal of this one.
First, hit Start to pause the game. Then hold down L, R, Triangle, and Left (on the d-pad) simultaneously, and you'll bring up the cheat console. Enter the following cheats one button at a time.
|All characters visible||Left, square, up, triangle, down, cross, right, right|
|All weapons unlocked||Cross, square, triangle, cross, square, triangle, left, right|
|Civilians Invincible||Up, up, up, left, down, up, up, right|
|Infinite ammo||Square, square, triangle, triangle, left, right, cross, cross|
|Officers Invincible||Triangle, up, right, right, right, left, left, left|
|Player 'invisible'||Right, left, right, left, down, up, right, left|
|Player and officers fully promoted||Square, square, triangle, up, up, down, down, suqare|
|Player Invincible||Square, up, down, down, cross, left, up, down|
|Sounds are not heard||Up, down, down, left, up, down, down, down|
|Stop the timer if one is active||Square, triangle, left, up, down, cross, cross, down|
|Unlock Remixed Credits||Up, right, left, right, cross, right, cross, right|