What platform do I select for a game on the Super Cassette Vision? I don't know if there is one that is applicable that I just don't recognize or if it has just not been added to the list yet.

From what I can see, that platform doesn’t exist on the site yet, you’ll need to request it.

https://www.speedrun.com/The_Site/thread/lktj9

Thank you. I didn't know about that thread.