From the back cover:
"Journey back to an age of innovation.
As cars became more and more common on city streets, the Trotmobile came into being. This two-legged, walking metal vehicle could be adapted to a variety of road conditions and purposes. As the industrial revolution continued, the Trotmobile's popularity increased. People placed their hopes and dreams on the backs of these wonderful machines, marching toward a better life just beyond their reach...
"Sandbox" style gameplay offers a fantastic non-linear action adventure!
Make your living playing in a band, hauling cargo, or even as a Trotmobile arena fighter. The choice is yours!
Customize your gameplay experience!
Buy parts to pimp out your Trotmobile!
Battle over land, sea, and air in your Trotmobile!
Fight an overwhelming number of enemies and gigantic boss machines!"