Update again. Currently I just finished the third house which is almost a quarter of the way through and I am currently
00:23.22 seconds ahead of the 1 Player run and
00:37.67 seconds ahead of the 4 Player run. If the exact pace is maintained for the rest of the movie the final result should be about 93 seconds faster than the 1 Player run. That is of course an estimate and could be larger or smaller but I feel it is about right. Currently I beat the 1 Player run by at least 30 frames in each room (some rooms as large as 526 frames) excluding the exterior walking scenes which is unavoidable since the second player has to walk further than 1 player would.
I tried to keep things as entertaining as possible without sacrificing frames.
Also for some reason when I export from fm3 to fm2 file if I do it with 2-player the run desyncs and it only works if Four Score emulation is chosen even though there is no input for the third or fourth player so as a result the 3rd and 4th player input is in the file but they are just blank. If there is a way to fix that I would love to hear it because it makes the input file unnecessarily large and just doesn't look as good if you look at the complete input.
I am open to suggestions and would love to hear what you think about the progress so far.
EDIT
No new WIP yet (but I am actually progressing pretty well) but I just calculated this so I thought I would post. I knew I was using more optimal movements than the 4 player run but I wanted to quantify it so I tried to find the improvements if you ignore lag.
Up to the junkyard I am
00:39.98 seconds ahead of the 4 Player run. Using the lag counter I found that up to this point in the run the 4 Player run has
00:41.17 seconds of lag (this includes the fading in and out of black between levels so it is higher than in game lag but whatever) and my current 2 Player run has
00:07.40 seconds of lag. This means that the 4 Player run has an extra
00:33.77 seconds of lag at this point than my run does, which means that my run has an extra
00:06.22 seconds of real improvement over the 4 Player run even with the 4 Player run able to have 2 characters continuously moving forward so the screen can move more continuously.
I know this is not a 100% accurate metric but this gives more encouragement to the 4 Player run because not even attempting to reduce lag the run could potentially be improved by a predicted 21 seconds.