Martian (Zombies of the Stratosphere)

The Martians of the 1952 Republic serial Zombies of the Stratosphere seek to remove Earth from its orbit (sending Earth spiraling into Space) so Mars can be positioned to take its place. Both tasks are to be completed with Hydrogen Bombs. It's stated that due to Mars having a low oxygen atmosphere Martians have developed the ability to survive in low oxygen environments and are capable of holding their breath for about half an hour or more.

Technology
Martians travel to Earth in a rocket ship armed with ray guns and possess hydrogen bombs, TNT, and Gas Bombs. They also utilize remote controlled Robots.