The quality of different 3D (red-blue, red-green) glasses varies significantly. Our glasses are optimized for the use of AmblyoPlay. If you buy different glasses, just make sure that your right eye is covered with a red lens and your left eye with a blue/green lens. We have included color calibration within AmblyoPlay, which should allow you to reset the colors in a way that they will work at least to some degree with other lenses and glasses.