The cheat device (or plugin) formerly known as DarkPR -- now titled DarkFrost -- has just hit version 4. DarkFrost is a NitePR mod stemming from demon450; NitePR being the original work of SANiK.
DarkFrost lets you cheat any PSP game -- easily bypass challenging parts or kick back and wreak havoc without worry, like causing pandemonium in the GTA streets with unlimited ammo and health ... 6-star wanted levels sure are fun, especially when you're invincible.
Where can you get the latest cheats for the latest games? Try
http://psp.dashhacks.com/file/1830 out. Have fun!
Update: Get cheat codes
http://www.codeleakers.com/icdb/Darkfrostv4 Download:
http://psp.dashhacks.com/file/1966