The Black Mirror creator revealed to The Wrap that he has pretty much forgotten how to find a secret ending, which sees Stefan take out a cassette copy of his Bandersnatch game on the bus, rather than whichever one you chose for him to pick up at the shop ( Thompson Twins or Now 2).
"I think it's either that you get it straight after the train [ending] or, if you haven't yet done it, it will trigger if you've seen like four or five endings, I think. I think," he said. "There's some bit of arcane kind of stuff it's working out there."
He continued: “That’s a good example of how complicated the whole thing got — that I can’t tell you how to trigger it.”
His co-writer, Annabel Jones added: "“At the time we launched, we would have known — if that gives you any comfort and attempts for us to regain our professionalism,” she said.
Can't really blame them, there are allegedly a trillion permutations. I can't even remember what I chose for breakfast (Just kidding, always Frosties).
Black Mirror: Bandersnatch is streaming on Netflix UK NOW