Competor has started uploading a walkthrough of it on his channel in this playlist https://www.youtube.com/playlist?list=PLqnMDAwv_U-ychsgqingwF3CiWCaVdkm5. the 5th video in the playlist is where part 2 starts. Two important things to note is that Competor is from Japan, so you will probably need to use translated subtitles if you want to understand what he's saying if you don't understand Japanese; and that as of the day I'm posting this reply, 5 of the videos aren't public yet but, based on the upload pattern of the previous parts, I believe it should all be public by January 15th 2023. I might wait for someone else who speaks english such as Joseph Mansfield to cover the game https://www.youtube.com/@JoePlaysPuzzleGames unless I'm desperate to find out the solution to a certain puzzle.