An excellent idea briefly distracts you from the matter at hand: the spider trying to kill you. You turn back to the beast just in time to see its heavy leg smack directly into your face. The impact knocks you over, despite your weight (you're made of metal!), but you hardly feel any pain, the metal of your skin about as unfeeling as ever.
As you start to pull yourself up, the machine screeches and again swings a leg at you. This time, you manage to duck the appendage and roll under the belly of the beast. You hear another shot, but from here you have no idea what it hit, if it hit anything at all. It's not so important, anyways. The beast above you is too thick-skinned to care much about those shots.And it doesn't SOUND like it cares.... It sounds like it's looking for you. Oh, dear. Luckily, it hasn't moved yet...
You draw back your fist, concentrating your energy and yourself. Elementals were well known for their ability to control their own element, and metal was no exception. The gunmetal brass (or is it bronze?) might have withstood a bullet or a sword, but neither of those simply sank into it the way you could. Hell, you could have simply walked into it, were you not stuck below it. A single hand would do just as well, though.
Alas, there was no great destruction when the punch hit the machine. Your hand just sank into it like it was hardly even there... bending it, stretching it, and then... A pipe. Perfect. With a little effort, you were able to make the metal bend to your will: namely, opening up the pipe to the outside of the machine. You smile as steam rushes out with a great hissing sound. Without pressure, the hydraulic joints of the beast are little more than deadweight.
The titan looks around in apparent panic, unable to determine the source of the hissing. You manage to crawl out a bit and see Tara grinning madly, beginning to put down her revolver. The spider tries to charge her, but it seems like it's moving through water, given how slowly it moves its legs. A few seconds later, a final screech marks the fall of the great beast, defeated by a mere pressure leak.
Relieved, you give Tara a little thumbs up sign. “I'm okay!” you assure her... and are rewarded with the beast's body collapsing right on top of you, pressing down on your body with a force of tons. A little cry of pain escapes you- you're not THAT good at controlling pain... “Less okay....” Tara just winces and runs over to you, presumably to help you out.