Sound effects within game play are also believed to impact game performance. Ambient sounds such as those present in "Resident Evil" are seen to enhance the tension felt by players, something that GameSpot stated was also used in cinema. Speeding up the sound effects and music in games such as "Space Invaders" is also stated to have a strong impact on the gaming experience when done properly. Properly done, this can help create realism within virtuality and alert players to important scenes and information.