It can "freeze" a memory address disallowing the game from lowering or changing the information stored at that memory address e.g. health meter, ammo counter or manipulate the data at the memory addresses specified to suit the needs of the person cheating at the game.
It can "freeze" a memory address disallowing the game from lowering or changing the information stored at that memory address e.g. health meter, ammo counter. It simply manipulates the data at the memory addresses specified to suit the needs of the person cheating at the game.