Endless ammo
Manhunt 2: Cheat Codes [PSP] Free Download
In the main menu: up, down, left, right, up, down, left, right.
Level selection
On Title Screen: Up, Up, Down, Down, Left, Right, Left, Right.
Leo’s mission:
Beat the game once.
Additional scene:
After completing the game once. This will allow you to select the function.