Casual Games [http://www.vgcats.com/comics/?strip_id=282].
Screw you, guitar hero, rock band, wii sports, world of warcraft, and pretty much every other game made in the last ten years (with a few notable exceptions, such as Demon's Souls). And screw you, wii.
Finding a good, challenging game today is like finding a pound of gold that randomly appeared on your back porch.
And to all of you who say you hate sports games: Aw, come on; Blitz: The League 2 is fun. Not particularly great (it suffers from the perpetual easy mode that's been plaguing the last dozen or so years of gaming just like almost every other game out there), but fun. I mean, I love building up my defense so much that I practically win by default just because they've got so many players out of the game. Yay for being encouraged to cause injuries! NHL Hitz and the Monster League games were the same way - simply awesome.
Seriously, though, Demon's Souls has forced me to start paying attention again. It's not that it's extremely hard; simply put, it's very good at punishing you for getting distracted, or rushing, or anything like that. It forces you to learn - which is something that has been missing from gaming for a while, now. In the other "difficult" games, you are basically doing the same thing over and over, hoping for a lucky break. Demon's Souls, you're forced to try a different thing each time.
Except with Maneater. I didn't like that boss. He was mean.