3D mode allows you to ride AirCoaster in full stereoscopic 3D if you happen to have a pair of old school red/cyan 3D glasses handy. Themes work normally during the ride, which heightens the 3D sensation significantly.
Brown/blue (ColorCode) and green/magenta 3D glasses are supported as well. You can even tweak the brightness used to render the image for each eye to produce the best 3D effect.
3D mode is automatically disabled in Game Mode.