Boom Blox may be hazardous to your triceps.
It would appear that the Fabulous Boymeat and I are either children or an entire family, because that's who Boom Blox is supposed to be fun for. We picked it up a couple days ago, and have played it every evening since. It's Jenga meets Breakout meets the simple love of throwing things at other things and watching them explode.
Aiming the crosshair and moving the remote smoothly (required when pulling blocks out of a structure, Jenga-style) is thrashing our throwing arms, however. Learning to throw with our off hands was briefly and at least semi-seriously discussed this morning.
It even has a level editor/designer built right in. A++, will play until my arm falls clean off.