Help the poor, a coin for the kid, medicine for the sick. You help everyone you see.

Kill at least one enemy with each weapon available in the game

Kill 50 humans with pneumatic weapons.

On the level OUTPOST reach the radio tower and broadcast the commander's message.

Kill 15 human enemies with Headshots from at least 30 meters' distance.

Kill 30 human enemies in close combat.

Kill 30 enemies with throwing knives.

Kill 100 enemies using revolvers.

Kill 30 enemies with a flamethrower.

On the level HUNTER kill the nosalises before they break through the ventilation grilles.

Complete the game in Survival Mode.

Kill 5 amoebas.

Kill a librarian.