In Back to the Future III, the final entry in the trilogy, Doc and Marty find themselves in the wild west era of 1885, once again desperately striving to fix the future by meddling with the past.

Trilogies tend to deliver diminishing returns as they run out of steam, and that's definitely the case here. Part III is only 98% perfect and was choked to the rafters with steam, if you know what I mean.

Perfect fodder for gaming adaptation you might imagine given the potential for shootouts, cowboys and Indians, and high-speed train journeys. I investigate to see if Probe Software's playable companion for all the popular computers and consoles in circulation in 1991 honours the revered classic, or tramples it into the dirt under hoof.