Also for anyone who is too stuck on the MSS puzzle I can give you a vague hint that the solution involves starting by sort of working your way from the lower right to the upper left.
I think it might actually be too nonlinear to cleanly do a playthrough of the entire game including all branches. Sometimes you can get back to the same path from multiple starting points and end up with different results. I don't know how someone would approach trying to record everything without a ton of overlapping footage.