In an interplanetary cruise,Your spaceship drive into a deserted
planet owing to a malfunction .The planet is suffering Alien invasion.
By chance, you find that the last hope of the people left on the
planet.That is space through machine.With this machine may through
to the other spaces temporarily.But the machine is not yet perfect,
you need to gather more parts to improve it.This is only hope of
returning to your planet. ←→ to move,↑ to jump,1,2 Switch the space