Algodoo

Good idea, it's kinda unstable, though - hands can easily twist, if you hold 1 or 3.

Neat, and more simple than spring softbody. I like it.

Nice one!

Those are pretty cool in my opinion. Couldn't figure out how to make a walker myself though:)

Pretty cool!

Great.

hmm yes, it really is now i think of it

Mechanism was made by fnorgen, actually, so you should credit him.
And if you going for realism, than how come breech cover does not move?

Finally something cute ^_^

It's very cool, but for some reason jump and machine gun fire doesn't work for me. Which version of Phun do you use?

This is uber-awesome. Total win (except for colours, maybe)

now it's even more uberawesome. Ultimate gun!

Awesome work.
10/10 of course.

Nice and stylish. You could add some kind of an obstacle course, though