Level select(kill.switch) Complete the game under the normal or hard difficulty setting to unlock an option that will allow you to pick any level in the game.
Hint: Shooting hidden enemies(kill.switch) Some enemies hide in areas where you cannot shoot them. Throw a grenade at them and they will jump out of hiding. When they jump out, they will land on the ground on their stomachs. They will require a few seconds to get back up. Before they do, aim and shoot them or they will go back and hide again.
Hint: Grenades -kill.switch When on any level and there are two enemies talking to each other, throw a grenade (for example at the beginning of the Think Like A Gun level). They will not even look to see what it was because they will be distracted.
Hint: Shooting enemies The best way to kill someone is to pull the trigger when your crosshairs are red.
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