Indiana Jones and the Emperor's Tomb Cheats
Push Square to pistol whip your adversary. You will find this to work for every gun, not just the pistols.
Equip the PaCheng and push R1 to block.
Drink from canteen
To drink from the canteen, press and hold X. If you instead tap X, it will take longer. Holding X also helps when you fill your canteen.
Avoid falling damage
Push R1 as before you hit the ground to enter combat mode. You will not get any damage from falling.
By collecting every artifact in the game you will unlock an art gallery.