Do "casual gamers" dislike challenging games?

[richardhutnik]

Smidlee said:

"Casual gamers are gamers who have other things in their life to do. "
Hardcore gamers also have other things in their life to do so that statement doesn't really defines "casual gamers."

Casual gamers like to play something that is easy to pick up and play for a few minutes like Tetris for example.

As I said "other things to do".  Gaming isn't a dominant way to spend time for casual gamers.  It is something they do while waiting in line, or needing a short break.  A casual gamer isn't going to organize their lives around gaming.  Gaming is just one of several recreational activities they have and can do.