The Dual Play glasses fulfill its purpose and ensure that you only see his own screen. This ensures especially in games in which you should not see the screen of the competitor, for example. At FPS, for a lot of fun You have the Dual Play mode often end the game and start again, otherwise you just each the upper or the lower half of the screen provides the menus. However, some games, such as Call of Duty Black Ops 2 have an additional Dual Play mode, which prevents this. The glasses sit very comfortably and are easy, but after long wearing they are slightly uncomfortable.
Disadvantages are: -schlechtere resolution and poorer graphics -Easy distorted images (images go in the width) -When big difference in luminance shines through the image part
For 1 vs 1 games where the opponent's own screen should not see these glasses are recommended. If you, however Koop plays games, so playing together as a team, the use of glasses is not recommended.