Unlimited ammo and grenade (but not for laser weapon). Unlimited hours to upgrade. unter (memphys)code on the last level to unlocked. Kill monsters explore bases and find survivors, do not let monsters kill you or get through wall. Find a bunch of new weapons and bring all survivors to the evacuation point.
Use WASD KEYS to move. Click the LEFT MOUSE BUTTON to shoot. Press the SPACEBAR to change weapon. Press \"R\" KEY to reload. Use \"G\" KEY to throw a grenade.