http://www.xavix.com/

Here's a sweet idea that really works if you have a TV screen as
big as your garage door (i.e. if you have one). Japanese company
XaviX is betting the XaviXPORT is so simple, even video-challenged
gamers will get hooked. Just plug the console directly into a TV.
Insert game cartridge. Place the optical sensor on the floor in
front of the telly. And, voila. Go golfing, bass fishing, bowling,
boxing, tennis, baseball or even master Jackie Chan's moves, all
within your living room. Do ensure that pets, parents and
passers-by are safely out of range of your swings and smashes.
Hardcore gamers, though, will consider this baby stuff and likely
opt for thumb twiddling on the PS2 or Xbox 360.