The principles are easy: control both vessels in sync, live against all of the odds and maintain calm. Your survival depends on shielding two vessels - they're devices in sync, a dancing and tune involving two things tethered together in symbiosis. Feel advantage of your chair terror in which the entire world around you becomes silent and overpower as all that matters is your match residing between your hands - which is Dual.
Touch right side of display to flip left and right side of this display to switch left. It is possible to use the left and right keys for desktopcomputer.

Touch right side of screen to turn right and left side of screen to turn left.You can use right and left keys for desktop.