The demo was the first level in the bay. I think after 100 playthroughs there were like 5 different strategies to clear that level, all equally fun and effectiv

The demo was the first level in the bay. I think after 100 playthroughs there were like 5 different strategies to clear that level, all equally fun and effective. And indeed at the end you were just pumping 500 rounds into unstoppable Doom-style monster deep inside some dark hallway.