Gravity Storm: First Mission Home Gravity Storm: First Mission 0.0 / 5 ( 0 votes ) Your Rating? Discover Gravity Storm: First Mission – Play Free Now on WebGameFree! Gravity Storm: First Mission is a side-scrolling action-platformer inspired by the classic NES game Metal Storm. As a combat robot with a laser blaster and gravity-shifting powers, your mission is to battle rogue machines and restore order to a virus-infected space station. Enjoy playing this game here at RegionGame.com! Categories in which Gravity Storm: First Mission is included: Arcade