Who says shooter games have to always have blood and violence? Play a friendly game of paintball, where it's you against everyone else. It takes one shot to bring your enemies down, no matter where you hit them. Use the mouse and left mouse button to aim and fire your paintball gun as your opponents pop up from behind boxes, barrels, and windows. Armor upgrades and health packs will appear at random; you must shoot at them to power up before they disappear. Advance through the stages without a break in the game; your health remains the same as it was the last stage, so beware!