All Weapons, Infinite Ammo, Medipacks :
Face Lara exactly north, then enter the inventory.
Highlight Small Medipack and press L, Up, X, Up, R, Y.
Infinite LaserSight Amm:
Combine the Crossbow or Revolver with the LaserSight, Zoom in,
hold L and press Start.
Select the Pistols and press A. Exit the pause screen.
All while still holding L.
