Invincibility is a parcel extra in LEGO Indiana Jones: The Original Adventures, that can be found on the final level of The Last Crusade, "Temple of Grail". When turned on you'll be exactly what the name of this extra is (Invincible). And any attack attempted to take you out will be useless. But you still can die for certain things such as ,falling of a ledge or being hit by a spear (unless someone throws it at you). But the good thing is that even if you die from one those or something else that can kill you while your supposed to be "Invincible" is that you don't lose any studs.