World of Goo

A very cool game :) (cool movie and a great demo here!) You have to connect blobs of goo to get to a pipe and transport other blobs of goo to the pipe. Sounds weird ... but is very fun and really makes you think about physics.

It's also supposed to be available on the wii through wii-ware .. but that's only in the US right now. Apparently it will be sold in stores here, making it a lot more expensive :'(.