Platinum's Wii U exclusive sequel also comes with Nintendo character themed costumes. UPDATE: The original game appears to be bundled-in only for physical copies.
UPDATE: Nintendo's E3 Game Site for Bayonetta 2 currently states that the original game will be "packed in with the purchase of every retail packaged version of Bayonetta 2." This highly suggests that players who opt to download the sequel will NOT be treated to a free copy of the original game as well.
Additionally, the game's description from the same source reveals a little more about the "Tag Climax" multiplayer mode, where players can play co-op missions and be rewarded based on their game performance compared to their partner's. This mode is described as requiring an online connection.
Original Story:
Bayonetta 2 will come with the entire first game included, Nintendo has revealed during their E3 Digital Event. Since the original was not present on Nintendo systems, this gives players of the sequel (a Wii U exclusive) a chance to experience the entirety of the franchise when it comes out this Fall.
The end of the game's trailer also revealed some branded levity: Nintendo character costumes for the titular character. The trailer revealed a Princess Peach costume (with themed attacks where what appear to be Bowser's disembodied fists or feet strike out from portals a la the game's special attacks), a Link costume, and even a costume based on Metroid heroine Samus Aran in her trademark power suit.