Stargate (Atari 2600 - a2600)
A foreign marauders attacked your planet. They abducted residents of humanoids, and turning them into a mutant! You pilot your ship along the surface of the planet away. But first you go to Landers - the most insidious aliens. You race to the nearest Gate, and bam! You experience that terrible - time warp - feeling like you are transported to the other side of the planet. Only you, with the help of Stargate, can save the planet from the attack!