Graviton is a skill game on www.flash-game.net in which your mission is to collect the orb and take it to the outer space. To accomplish the mission, you need to navigate your way through the caverns, and you will kill yourself when you hit the wall. You can use your mouse to pilot your ship and fire thrusters. Watch out the fuel, without which you can not continue your fly any more. When you find the ball, try to land softly to get it otherwise you are easy to crash. Good luck!