Somebody call Shepard because the Normandy may have sprung a leak. News is breaking right now with screen shots from an unofficial Mass Effect 3 demo. The demo contains placeholder textures and music, as well as features like Origin support and game modes: Action/Story/RPG. Reportedly, the demo is lurking inside a closed preview for its upcoming revamp of the Dashboard for the Xbox 360. Thanks to PlayMagUK for breaking the story.