From Tyler Projects:
In Drop Zone for Windows 8 take control of your robot as it plummets towards the planet. Try to land on the floating platforms to prevent crashing. Collect bonus items scattered across some platform for extra points. You can control the robot using the mouse or keyboard (arrow keys or A/D keys). If you are using a touch screen, simply tap the screen as instructed. Tap left/right of the robot to move in the desired direction.