What is a walker?

[Eventorizon]

Would this mechanism count?

http://davidbuckley.net/DB/BigFoot.htm

You can move back and forth and then lift separately with each servo but you can't walk sideways or turn very easily...

And it looks very fragile!

[daliad100]

Would this mechanism count?

http://davidbuckley.net/DB/BigFoot.htm

You can move back and forth and then lift separately with each servo but you can't walk sideways or turn very easily...

And it looks very fragile!

That's technically a walker. Two four bar linkages in each leg with 1 DOF each in different planes.

Inchworm drive would also count. As for walkers that satisfy these rules and have won a fight, I got nothing