Spore. That game made me want to vomit down my pants.
It's basically like a very dumbed-down version of the Sims games, except there's nothing to do with your characters in the playing field, and instead of people, you're playing with a bunch of sickeningly ugly creatures that don't seem to have the capacity to do anything interesting whatsoever.
I'm so glad I tried that game out before buying it. I would have never forgiven myself for wasting money on that stupid game.