I ran out of ammo at the last boss, so I restarted, beat in 5 hours.
I made it to the final boss, but I'm having A LOT of trouble beating it.
SPOILERS-Do Not Scroll down if you want to know any part about the ending of Dead Space 2:
How many different times do you have to shoot the Marker to beat the game? I know shooting Nicole allows you to shoot the yellow part on the Marker, but the little necromorphs make it so much harder to get off shots at her, because I'm worrying about them all of the time. It is great that the little necromorphs only take 2 or 3 hits to be killed, but there are so many of them, and of course the necromorphs before the end make it hard as well.