Serious Sam 2's demo was made available for download today. I took the game for a quick spin this afternoon to see what gamers would be getting themselves into on Oct. 10 when the game ships to retail. The series has always been an intense, comic book-y shooter and early indications from the demo seem to point at more of the same. In a world that's a little bit goofy and packed full of action like Serious Sam's world, that ain't all bad.