I think I'm going to make it an importable script, so you can shove Shovel Knight into any HTML files.
I still have interest in doing this but I think I'm going to hold off on it for a while.
Recently I've heard that box2D has a JavaScript port. In case you didn't know, Shovel Knight uses box2D for physics… so I really want to create a browser extension where you can play as Shovel Knight in your favorite webpages.