Dead Space 2 is a game with a very specific target market: hardcore gamers who love to be scared. The creators of Dead Space and its sequel know that their game would never appeal to the masses, which is why they have decided to emphasize that fact in their marketing. In their commercials, they actually highlight the fact that the game is violent, gory, and to some, terrifying, all while showing how much your mom will hate it. While they might be trying to appeal to your inner need to rebel against your parents and society, I think they're also trying to say that they've found their niche, and they know it's not going anywhere. The only thing the ad doesn't highlight is the fact that while it's gory and violent, it contains a lot more depth than just hacking off limbs. It's an intense and mesmerizing gaming experience. Ultimately, it's a great game, and the ad is simple, funny, and shouldn't be taken too seriously.