Just Dance 2014 on Wii U (arriving October 8) and the new Picross E3 for 3DS. If you missed out on Sega's inventive Rhythm Thief last year, that's up on the eShop now as well. There is also, in fact, a game called Halloween: Trick or Treat 2, possibly a subtle hint from Nintendo that we haven't given it enough candy.
But who needs big new games when you can get old games on the cheap? From now until 9am PT on October 10, those who pick up the newly released Wii U Virtual Console versions of Final Fight, Final Fight 2 or Final Fight 3 can get a second fighting game (from a limited selection) for half price. The promo doesn't appear to be live as of this writing, but you'll be able to find it right here. Finally, you can pick up the weirdly engrossing Little Inferno for half price until 9am PT on October 9.