Now you can get more copies of the game (Wii U, PC, 3DS) per $15 pledge without having to create multiple accounts. Just follow the instructions here to make double-sure the process is correct, and you're good to go.
Also, the Enchantress enemy has been revealed, as well as an in-game music player stretch goal. At the time of this writing, the campaign is working towards the $90,000 goal of "Achievements for All!" and the $100,000 goal of a New Game+.
There's quite a ways to go until the final $200,000 stretch goal of a four player battle mode, so I'm interested in seeing how it turns out. Honestly, I'm just glad this game is funded, as I could always use more retro in my life.