1. WiiSports. The remote STILL fasinates me. xD 2. DDR: Mario Mix 3. Nintendogs, it's a very well thought out game. Repeative yes, but the dogs respond to your voice, that's pretty cool.
Nothing else really has struct me as, 'amazing.' The Brain Ages are pretty cool, how the measure your brain age. xD Other than that, I'm not really a huge gamer.