My flatmate mentioned to me that he used to play a computer game involving the BC comic character Thor riding around on his stone age unicycle (aka BC wheel).
I found a link to a review of it here:
Has anyone else out there played this? Are there any other computer games featuring unicycles besides this and nintendo’s uniracers?
You can get emulators for most of the the old computers and consoles (from zx spectrum to BBC to arcade machines). If you can get a copy of the rom you can play it on your PC