Speaking of easy ^ something not easy at all from what I've heard so far is the Dead Space 2 Hardcore mode.
In case you haven't heard you have to start the game over with none of your weapons and armor. Okay that's fine...
But the real kicker for me is that you can only save your game, only save your progress 3 times throughout the whole story mode to clear it on Hardcore. So for a 10 hour game you have to save in at least 3.5 hour sessions.
On top of that you could be killed in as little as 2 hits on that mode. It would suck to be 3-4 hours in and not save only to die from 2 quick hits and have to start all the way back at the beginning of the game again. Wow. That would be so frustrating, talk about hardcore....
Hardcore mode in Dead Space 2 is going to add even more fear to the game! I remember in the early resident evil games 1-3, besides conserving ammo, part of the fear was saving ribbons (for limited saves) and reaching a typewriter to save your game. If I hadn't saved in a while I would get even more frightened rounding every new corner.