IGN is running an exclusive Dead Space trailer. This one focuses on "strategic dismemberment." Apparently, the monsters in Dead Space (called Necromorphs) won't die if you just shoot them in the head or body. They're like the Regenerators in Resident Evil 4; you'll have to take use your weapons to carefully pick them apart until they can no longer function.

The trailer shows off a couple of those weapons -- a stasis field, which freezes enemies in place and makes them vulnerable to melee attacks; and a telekinesis gun, which functions like Half-Life 2's gravity gun. You can pick things up with it -- even your enemies' severed limbs. Gruesome.