Auditorium is fun - you can play a few levels as a demo, but you have to pay up if you want the full game.

The Impossible Quiz is very silly - I haven't finished it, either.

Have you been following Fred 'slacktivist' Clark's demolition of the Left Behind series (a.k.a. The Worst Books Ever Written)? When you get through that, check out the amateur alternate takes and this extraordinary professional one (scroll down for the free download of "Therefore, Repent!").