I finally got Wario Ware: Smooth Moves (Smoove?) From Amazon. A thick slab of fun, though you often have to meet the game halfway in figuring out exactly what moves it wants you to perform.
The highlight, without a doubt, was the final boss game, which puts you in a chorus line in a surprisingly satisfying way.
As it's short, I highly recommend a rental. That may be all the fun you need, but it's a good ride while it lasts.