I saw the October challenge 2 days before the deadline - so I rushed a little bit to get something in. It was overall very fun making this piece, and I also learned how meticulous you have to be to get all the timings correct. Please enjoy! Or be spooked. Either works.
Also, if there's a better way to sync music with a video while composing please tell me. I had to split screen and play the video in a separate browser window when writing this, because playing the video within flat only played the video audio. I couldn't figure out a way to play the video and listen to what I wrote within flat. After posting this, I will probably have to re-sync it a little.