Well, the demo was actually on my DF disk, along with one for Full Throttle. Anyhow, you know the 'Emperor's Lounge' area? Well, there's a few weapons in there like the Jeron Fusion Cutter and the Repeater. It also loaded with a cool video of Kyle gearing up that was sadly not in the full version. Another neat thing is the energy cells are just gray blocks and don't have any glowing blue part and therefore look more like a gun clip (uhh, only REALLY big).
"The Force is strong with Katarn...." - Darth Vader, Star Wars: Dark Forces