There are no other dogs for you to save in the game; that one was it and even though he was useful for this creature, he only helps you a little, not enough to save you from dying if you aren't doing well.

For this guy, you need flash grenades, your shotgun and your handgun. Any other weapons will be useful but I've that the aforementioned ones are the best. You need to get really good at running, because you'll be running from this guy several times in this long fight. If he's far away from you, use your handgun and aim at his head. If he's right near you, use a flash grenade and pump a few rounds from the shotgun into him. When you can, you should run around and into the shacks to get the items there, but don't spend too long inside since he'll come after you eventually. You can't kill this guy quickly; the best you can do is avoid him and shoot when you can.

I've looked around lots of places for unlimited lie or ammo codes, but so far I haven't found any. The game may still be too new.

My answer is to simply start over, but if u have 30,000 peas spend it for a rocket launcher and blow that sucker from wence it came. If your broke sell a lot of your stuff for it.

Sell your stuff? who said that? damn, this giant can be killed with the knife, if you have the patience and are willing to die a few times trying. just wait until it follows the dog, or until it grabs some rocks, then stab him until he drops.