Digipen student projects are an excellent showcase of innovation in game design. They aren't all winners, but the good ones are VERY good. If you haven't already, check out Toblo, Base Invaders, and Squishy the Starfish. Squishy wasn't submitted to any game festivals so it isn't as polished as the other two, but it's still a very interesting design.
Student projects can be found in the gallery on
www.digipen.edu
but yea, Narbacular Drop is cool. Try to get yourself into an infinite loop of falling with a door on the floor and ceiling.