Metal Arms consists of 42 separate levels in homage to Douglas Adams' book series "The Hitchhikers' trilogy." Gameplay is in a third person perspective. Over seventeen weapons are accessible to the player, most of which can be upgraded through the use of upgrade kits strewn about in various locations in the Campaign. The game provides a multitude of standard-fare shooter weapons, such as flamethrowers, machine guns, and grenades to push through levels with brute force. It also includes the Control Tether, which allows the player to directly control enemy forces and use their own firepower against them.
Although level design is linear, there is more than one way to complete objectives.
Source: Wikipedia, "Metal Arms: Glitch in the System," available under the CC-BY-SA License.