Some people say this game disturbs them because during their childhood, they always saw stuffed animals as demonic entities when they're seen in the dark while they try to go to sleep. Funny.
This game is T rated, can't say that I'm surprised that even though you can run around killing innocent people (teddy bears to be exact) with deadly weapons, shove their faces in fuse boxes, and shove them into giant cake mixers, it still doesn't change the fact that you'll see nothing but the stuffing flying out of them instead of the cliched blood and gore. I must say, this is a smart way to dodge angry parent responses even though they're the ones buying the M rated games for their kids.
Check out these cool Pre-Order bonuses for Naughty Bear:
http://www.joystiq.com/2010/04/27/naughty-bear-pre-order-costumes-pay-tribute-to-slasher-movie-vil/
I think people are being pretty hard on this game. The game does get redundant a bit faster than some games but once the concept of the game is realized through the violent game play there are some good times and laughs waiting to be had.
I wouldn't recommend buying this game for any reason other than novelty but it should certainly be tried. The concept of this game is one that's usually seen in a poorly made budget title. This game is like one of those B movies given a huge budget. Yeah, the effort that went into the game is appreciated but once the sheen of the games twisted novelty begins to wane so does interest. Although, there are some pretty tough challenges in the game if one does decide to complete it.