Alright, finally a game worth buying! Of course, this means it was 100% claimed in about five minutes, but during those five minutes, you could buy the awesome Wario Land: Shake It! for about $35, down from a $50 MSRP. I already have a copy, so I'm not too burned, and this is the odd Amazon Gold Box Deal game where I'd say it's just as worth it at full price. Shake It! got some weak reviews, but I personally loved it from start to finish and never got tired of playing. I am, of course, pretty biased in favor of 2D gaming, though.
The next clue is "Now your Mii can boogie to the beat", so some sort of rhythm/music game. Dunno what off the top of my head. It'd be nice if it was a game I actually liked, though.