You play as Grayson Hunt, a former assassin in exile and seeking revenge. After crash-landing in the middle of the crumbling planetary resort of Stygia, you must fight your way through the local mutant population to finally escape and exact revenge on the commander who betrayed you.

Shoot your way through seven story acts in the campaign, take on hordes of mutants using a variety of weapons and, in addition to bullets, use brutal eliminations to earn money for bigger and better rewards.

"Skillshots" are rewards for perfectly executed kills, killing multiple enemies in quick succession, or "creatively" using the environment to take care of your enemies. A laser lasso is a great tool for these, allowing you to grab enemies from a distance and throw them into the air for some acrobatic maneuvers.

Join up to three friends in a four-player campaign filled with anarchic mayhem. Your squad will face waves of enemies and perform team skillshots together in an attempt to achieve the highest score. Or, you can jump into Echo mode and fight your way to the top of the leaderboards.