Is it any fun?

its kinda fun if you dont have any other one...its really laggy though

Ain't that the one in which you can snipe with shotguns?

I think it is one of the best games on the PSN and Xbox Arcade. Still has a lot of people playing too(only know about the Xbox version). Although lag is sometimes a problem and other times it's not it still is a very nice experience. Well polished game that you can tell they put time into.