Man do we love Halo 3's newly improved physics engine ... especially how everything reacts to the Man Cannon. In the video above, you'll see how Halo's gameplay has changed with the new physics engine. Witness a warthog launch through the Man Cannon and plasma grenade being thrown just a little too late. But wait, this is where Halo 3's physics shine, as you'll notice that the plasma grenade also flies into the Man Cannon and launches right behind the warthog. The warthog lands, the plasma follows, a big BOOM is heard, and an opponent dies. Here's to launching hundreds of plasma grenades through the Man Cannon and bringing blue death upon unexpecting enemies. That's how we roll in Halo 3.