How would the game have went if they had an Energy Sword (Halo) or Lightsaber (Star Wars)?
Obviously Lightsaber might have made it a little over the top, but if you made any type of melee sword for the game I think it would have made the challenge a little easier. Not just that you wouldn't need ammo anymore to shoot off their limbs or anything, but the Necromorphs are rarely a ranged class of enemy (not including the ranged classes of necromorphs) as you mostly encounter. And those of us that have played, from experience, an elbow to a necromorphs face isn't deadly... unless they are dead and you want to knock off their head right? Haha...

In Dead Space: Downfall they have like laser chainsaws which more or less are lightsabers, always thought it was a shame they werent put into later games. Otherwise i guess the Ripper is a type of melee weapon, at least one of its fire modes is seeing as the blade doesnt shoot off.