Historical video game preservation is important and it's nice to see folks taking action to improve things. Retro game collectors and historians do a good job and occasionally someone comes along with a fun project that helps move everything forward for everyone. Recently, Twitch streamer Peebs sunk some time into collecting each Super Nintendo game manual and putting them on a Super Nintendo game manual website as well as Archive.org. If you are interested in reading what came packed in to each Super Nintendo game they are available in PDF and OCR for viewing online or download. Nintendo has also made all the of game manuals available for the games included in the Super Nintendo Classic available for download for free from their website as well if you only wanted a handful of the very best games on the system.

Oh and yeah, they have the Romance of the Three Kingdoms II manual available for download too.

https://archive.org/details/snes_manual_archive/Romance%20of%20the%20Three%20Kingdoms%20II%20(USA)

https://sites.google.com/view/snesmanuals
https://archive.org/details/snes_manual_archive
https://www.nintendo.co.jp/clvs/manuals/en_us/index.html