Everyone always seems to focus on these big graphical showcase shooters, but I'm personally getting sick of them, it's just the same thing reworked over and over, totally saturated, how many of them do you need?
This for me could have the Lemmings effect, and I hope it does, because it's pure genius, and I wish that I had thought of it.
http://www.gametrailers.com/player/34172.html
http://www.gametrailers.com/player/34174.html
http://www.gametrailers.com/player/34184.html