Astronauts have to go out into space from time to time both for research purposes, performing the assigned task, and for repairing some parts of the ship or station that are outside. Usually such exits are carefully prepared and the astronaut is literally on a leash. But in the game Spacewalk, it happened that the hose burst and the poor fellow was left floating in a vacuum with a limited supply of oxygen. He needs to use the thruster in his suit to fly up to the green exit at the station. Remember that fuel is also limited. Watch the indicators in the upper left corner. If they turn red, the astronaut will die in the Spacewalk.