The Famicom, where
some say modern gaming originated, had more unique
accessories than its sister (or brother) console,
the NES.
One example of this is Top-Rider, an inflatable
motorbike made by Varie. Top-Rider comes with the
yellow and blue inflatable bike, white handlebars,
and the Top-Rider racing game, plus some
pegs.

Top-Rider is an dang interesting controller.
Maybe
unfortunately for Famicom collectors today, who have
grown up, the Top-Rider motorbike is delicate. It
was made for children, after all. Imagine 150 pounds
of adult human sitting on top of it...not good. But
I've heard that if you're tall enough, you can kneel
and still use Top Rider almost as it was meant
to be used -- and without popping it under your
weight.

Some of the stuff that you've got to work with.

The Top-Rider cartridge label.

The inflatable bike when deflated.
Top-Rider isn't the most common of accessories out
there, and because of how unique it is to Famicom
gaming, you'll likely pay a lot for it, especially
complete and in good condition. I'd expect to see
these selling for anywhere between $25 and $45. and
if you're looking for the ultra-rare special version
of Top-Rider, expect to pay nearly $1,000.