Sorry for the late reply, but unfortunately, this is one of a kind. It took me a long time to decide how to build it, so I don't really want to sell it. However, what I can do is take more pictures of it partially dis-assembled, so it's easier to figure out? I'll get more detail within a week or too, but hope this helps!

Hi just wondering how you made this? I have two of the originals that work pretty well. I would either buy this that you built or wondering if you can give me instructions? I know its been a year since the post but im a huge 80's collector and this was one of my favorites. Thanks!

nostalgic! well done!

I'm not sure. My guess is that the wheels would turn in opposite directions, similar to tank treads. The actual toy however only moved forward...

Its cool but its a bit weird. How does it turn? hehe.