Notice that if you have the free end of the toilet paper come over the roll towards the toilet as aposed to over the roll towards the wall, will determin if the unicyclist is pedaling backwards or forwards!
I have one similar to that, but he dispenses paper towels in my kitchen. I also have a toilet paper version in a box somewhere. John Drummond spent a long time trying to find a distributor for those things, but apparently to no avail at the time.
There are two problems with that, but only one might apply to that Japanese version. On mine, if you make him ride forward he tends to go crooked and bind up. Also rolling the paper the wrong way is evil.