Have they mentioned at all how the multiplayer battle mode is progressing? I know it is suppose to come at a later date as free-DLC, but I have seen very few mentions of it after the kickstarter campaign ended.
Shovel Knight's single player is blowing my mind though. I had almost zero interest in it until I saw it demoed during the treehouse stream, and even then I waited for reviews before I decided to purchase. What I'm trying to say is that I was extremely skeptical going in, but the game has been bloody brilliant from the opening cutscene. Not only does it control and play wonderfully, the little extra tidbits (upgrades, the breakable checkpoint system, dead souls-like deaths and miiverse functions, towns, NPCs, etc.) just really propel the game into being something truly special. It's fun, charming, funny, and tough in all the right ways. I couldn't really ask for more from a game!
On a side-note, I love all the shovel-related puns, not only in the game, but on miiverse as well. It just throws another layer of enjoyment on top of the enormous pile of awesomness Yacht Club Games has digveloped.