I''m planning to make a game programming demo, I have numerous ideas, and about 4 to 6 months of weekends and evenings to create it. I want to use this demo to land an entry level game development job at a small or medium size company. My question is this: Would employers be more impressed with a small, simple but fully playable game demo (like 3d asteroids) or a more ambitious, complex technology demo (like a rigid and soft body physics engine)? I''m especially interested in opinions from professional game developers and employers, but all input is welcome.