The Serious Sam demo/test is pretty interesting. I think the one
important thing it's lacking, though, is alternate firing modes for its
weapons. Frankly, I can't imagine why new games are made without that
feature, that's how attached to it I've become.
I have to say, though, it felt a hell of a lot like I was playing
Gunslinger Quake single-player. Knife, revolver, double revolver,
pump-action shotgun, double-barrel shotgun... wonder why I felt that way?