So, basically... Since I have my own place/office, tools, machines and everything I need. I've been working on a steel suit just for fun, as a hobby. Based on the Iron Man superhero, and I want it as my Halloween costume this year. My idea is to build it gorgeous, and I'm on that at the moment. It won't be something ugly and cheap, trust me. So my question is, how can I make it move with me inside? I'm not planning on making it fly, don't worry, that's impossible. But what kind of system/power should I use to turn it on with me inside the suit? I just want to walk, move my arms and torso, lift my knees relatively freely and bend over to grab whatever. And of course, be able to grab a drink. I already took care of the rest, like how to rotate my hand/wrist, the basic mechanics and stuff.. that's to basic. So what do you think? I was thinking on hydraulic systems, using the back and the front of the suit to hide and cover it. Or perhaps a small hybrid engine? I have no knowledge on that, I read a couple of things though. The suit as a whole, might weight around 200-250 lbs of steel. I just need to power-up the suit. Thanks.