Probleem is Zelda u is not yet playable 

A demo might be...

I would love the idea that it would include demos of third party games which then never turn up on the WiiU.. has that ever happend before?

Anyway demo's turn people more off than actually having people think: "ow i like it, i'm gonna buy it"
having people buying the game on the blind based on teasers and trailers is far more effective.

Why would a demo for a totally different style of game push Bayo 2 sales? Nintendo's philosophy is make a GREAT GAME and people will buy it. This will sale because of all the critics praise, plain and simple

how about a legit ad campaign?

Or they could have released more that 1521 or whatever the number was of the first print run special editions.

Could have done like 100,000 of them lol. Still holding out in the hope it comes to AUS

EVERTYTHING UP THIER SLEEVE EVER!!!!!
But Nintendo hates aggressive cards.........but once upon a time......they loved them. Against SEGA.

Nowadays.........well, I dunno what they are thinking in their drunk Japan office...

That would not push many units at all. Smash is out in a month and the 3DS game is pretty much already a demo for the WiiU game.
A good ad campaign would be better.

A code to download a smash Bros DLC.
The DLC should be bayonetta as a playable carácter on smash. Temporary exclusive for bayonetta2 owners.

You know what would be even better? If they included a superior port of one of the best games of the previous generation, all for the same price.