We're not sure what's going on, but it's probably a trap. Our sources indicate that the exit is through the ventilation system.
Follow the ductwork for about 500 meters. It's a bit cramped, but we've heard the snacks are great.
Level 2: The Airlock Conundrum - Where you'll have to navigate zero-gravity toilet stalls and malfunctioning life support systems.
Level 3: The Laser Maze - Where the only thing more plentiful than lasers is the despair in our hearts.