Quick-Step was originally a Japanese toy that Tonka used for the Gobots line. Overall the toy has nice robotic monster look to it. Sadly you really cannot do to much with it even though the arms are poseable.
The walking mechanism is pretty much having his leg move up and down with a large humming motor. It is rather effective and does not look to bad. These are also some of the tougher later series Gobots that were produced. The European version was green with scales.